Chemicals – spray drift

Sprayed chemicals are extensively used in agriculture and horticulture for the control of pests and weeds. Under certain conditions, this spray can drift over neighbouring properties, waterways and water tanks – this is referred to as spray drift. 

Spray drift can affect human, animal and environmental health, including household and farm water supplies (e.g. dams and tank water).

The health impacts of exposure can depend on how and where a chemical is applied, the amount of drift, weather conditions and the toxicity of the chemical. If you have been exposed to chemical sprays through spray drift, and are concerned, there are several agencies you can contact for help.

It is important to consider a nozzle or sprayer setting that produces the largest possible droplet size (coarsest spray quality) without compromising the efficacy of the chemical. Larger droplets are less likely to drift.

Find out more about this topic on Better Health Channel.

Fast facts:

References used for this topic

More information:

Grains Research and Development Organisation (GRDC)
Spray drift
Spray drift management tool permit

Queensland Government
Minimising the impacts of spray drift

Victorian Poisons Information Centre
Prevention of poisoning

NSW EPA
Avoiding pesticide spray drift

drumMUSTER
Provides Australian agricultural and veterinary chemical users with a recycling pathway for eligible empty agvet chemical containers

Agriculture Victoria
Managing spray drift

Australian Pesticides and Veterinary Authority
Spray drift

Chemicals – safe handling

Agrichemicals such as insecticides, herbicides, fungicides, veterinary chemicals and fuels are used commonly on farms. Different chemicals can be dangerous to humans in varying degrees and need to be handled and stored with care.

Always store chemicals in a safe place, out of reach if children and don’t store or mix chemicals in an unlabelled container.

Because farms are often homes as well as workplaces, potential contact with chemicals by family members is increased. There is also the possibility that chemical matter/residue is taken back into the home, for example on clothing, protective clothing (eg. overalls) or footwear.

Chemicals can be absorbed through contact with the skin or eyes, inhalation (breathing in), or ingestion (swallowing).

Always wash your hands carefully after handling chemicals and remove soiled clothing before you enter your home. If possible, wash clothing in a separate washing machine. Remember not to eat or drink where chemicals are used or stored..

Unfortunately, sometimes the effects of exposure to chemicals are difficult to pick up until chronic (long-term) illness has occurred.

Farm safety – handling agrichemicals

There are many chemicals used on the farm and some of them can be dangerous. Common agricultural chemicals include fuels, pesticides, herbicides, fungicides and veterinary chemicals. Exposure to chemicals can lead to health effects including headache, skin irritation, poisoning, nausea, respiratory illness, burns, cancers and birth defects. Always follow the manufacturers’ instructions for storage, transport, use and disposal of chemicals. Keep all chemicals locked away and out of reach of children and wear appropriate personal protective equipment (PPE) such as gloves and eye protection.

Find out more about this topic on Better Health Channel

Fast facts:

References used for this topic

More information:

Australian Pesticides and Veterinary Medicines Authority
Access to safe and effective agricultural and veterinary chemicals

WorkSafe Victoria
Managing chemicals in the workplace (PDF)
Checklist for Spraying Pesticides

drumMUSTER
Provides Australian agricultural and veterinary chemical users with a recycling pathway for eligible empty agvet chemical containers

Education

AgVet Chemical Users Course

Clinical care:

Environmental Protection Agency (US)
Recognition and management of pesticide poisonings

Research & reviews:

Australian Pesticides and Veterinary Medicines Authority
Chemical safety – first aid and safety directions handbook

Bushfires and water tanks

Water tanks are common on farms; however, if there has been a bushfire in your area or if your property has been affected by a bushfire, there is a need to take care before drinking water from your tank.

Water can be contaminated by ash or the chemicals in a fire suppressant if it has been dumped, drifted or sprayed on your roof.

Water may be contaminated if it:

You may need to drain and clean your tank and have it refilled with fresh water – there are water carting companies who supply this service. Divert rainwater from the first rainfall after the fires and only reconnect pipes to the tank after the roof has been flushed clean. Working inside a tank is very dangerous. Use a professional tank cleaner. Read more on confined spaces.

Consider disconnecting your tank from your roof beforehand if you know there is a fire risk.

Bushfires and water tanks

Private water sources in bushfire-affected areas could become contaminated from bushfire ash, fire retardant, debris or dead animals. If the water looks, smells or tastes unusual do not use it for drinking or food preparation and do not give it to animals.

Find out more about this topic on Better Health Channel

Fast facts:

References used for this topic

More information:

Department of Health (WA)
After a bushfire – hazards on your property

Queensland Government
Bushfires and roof-harvested rainwater

South Australia Health
Bushfires and rainwater quality

Bushfire safety

Bushfires are a natural and unavoidable occurrence in most areas of Australia and can pose considerable danger to lives and property in farming districts. Most farmers are familiar with these dangers, and many are involved as volunteers in emergency service provision such as firefighting and fire preparedness/education roles in their rural communities.  

For those farmers who are less familiar with managing, mitigating and responding to fire risks, the information below provides a snapshot of current information. 

Be prepared for fire 

Fire management planning on farms involves protecting both assets and people. Farmers and landowners in bushfire risk areas have a particular responsibility to prepare thoroughly for bushfire.

Having a written plan is the best way to do this. All family and farm staff should be involved in the development of your fire preparedness plan and be familiar with its contents through regular review and discussion prior to each fire season. It should be easy to find and include property maps and an action plan (or bushfire survival plan) for high risk days.

Resources and checklists to help prepare your plan are available through state government emergency service and agriculture department websites. 

Know the seasonal restrictions and fire danger ratings  

The Fire Danger Period is declared for each municipality during periods of increased fire risk. 

Total Fire Bans are declared on days when fires are likely to spread rapidly and be difficult to control. Many farm activities should be avoided because the risk of starting fires is extremely high and the impact of fire on these days is likely to be greater. Find out what farm activities are restricted during the declared Fire Danger Period, and on days of Total Fire Ban. 

Fire Danger Ratings are shown in the same way across all of Australia. They indicate how dangerous a fire could be if one started. This helps you to decide what actions to take to protect yourself and your family. 

There are four levels of fire danger:  

Image: afdrs.com.au

Make sure you understand the fire danger and warnings and stay informed.  

On a catastrophic fire danger day in a bushfire risk area, you should stay safe by going to a safer location early in the morning or the night before. Homes cannot withstand fires in these conditions. Later in the day you may not be able to leave, and help may not be available. 

On an extreme fire danger day in a bushfire risk area, fires will spread quickly and be extremely dangerous. You should take action to protect life and property. If a fire starts, take immediate action. Unless you and your property are prepared to the highest level, go to a safer location well before the fire impacts. Avoid travel through bushfire risk areas. 

On a high fire danger day in a bushfire risk area, fires can be dangerous, so you should be informed and ready to act due to the heightened risk. Decide what you will do if a fire starts. 

On a moderate fire danger day, most fires can be controlled. You should plan and prepare and stay up to date. Be ready to act if there is a fire. 

If there is no fire rating, this does not mean that fires could not happen, but that they would be unlikely to behave in ways that threatens the safety of the community. 

Stay informed to make good decisions 

Listen to emergency broadcasters, like local ABC radio, and monitor your state/territory emergency website and/or associated apps on your smartphone.

The Australian Warning System has three levels of warning that will be given if there is a fire in your area. Each warning level has a set of action statements to give the community clear advice about what to do. 

Image: australianwarningsystem.com.au

Wear appropriate clothes if you are likely to be exposed to fire 

Cover all exposed skin and wear:

Send children to safety early if you plan to stay

If you plan to stay, it’s better to send your children to stay with family or friends in an area away from bushfire risk. Reassure them that you will stay in touch. Children, while they may appear to cope with stress, often have traumatic reactions, like nightmares and behaviour problems for a long time after the crisis.

Listen to emergency broadcasters, like local ABC radio, but be aware that on high fire danger days you may not receive a warning about an encroaching bushfire.

Contact local fire authorities

Always refer to your state fire authority for further information about bushfire safety:

For information about safe return to your farm property after fire impact and farmer wellbeing during the following weeks and months please refer to NCFH fact sheets on these topics.

Fast facts:

References used to prepare this fact sheet

More information:

Australian Fire Danger Rating System (AFDRS)
Visit website

Better Health Channel 
Bushfire preparation 

Country Fire Authority (VIC) 
Fire Safety on the Farm 
CFA Publications  
About Fire Danger Ratings  
Defending your property  
Preparing your property 

Bushfire aftermath – hazards

Bushfires are a powerful and potentially devastating occurrence. If you evacuated before the fire, check with your local emergency services that it is safe to return home before doing so. 

Clean-up and recovery after a bushfire can be heart-wrenching, traumatic and also dangerous. Dealing with dead and surviving livestock, trying to retrieve belongings from fire-damaged buildings, dealing with hazardous materials, and repairing burnt fences, are all physically and emotionally difficult work. It is important to be cautious and take time to protect your health, wellbeing, and safety. 

The Department of Energy, Environment and Climate Action (DEECA), local veterinarians and your local council can coordinate and provide recovery assistance and advice to primary producers impacted by a natural disaster event.  

Key considerations

Livestock welfare: Assistance can be provided to assess and evaluate your stock damage and help with the disposal of animals that need to be destroyed. 

Hazardous materials that may be present after a bushfire include: 

Wear protective clothing to check your property after a bushfire. This should include: 

Clean or dispose of personal protective equipment (PPE) when leaving the property. Wash hands after carefully removing PPE.

Drinking water storages may be contaminated by ash, debris or fire-retardant chemicals. Do not drink water that tastes, looks or smells unusual. Do not give it to livestock or use in evaporative coolers. Disconnect rainwater tanks from roof gutter and downpipes prior to first rain (if possible) to avoid further contamination. Clean or drain sludge from tanks, but do not enter the tank due to the danger of working in a confined space – use professional tank cleaning services. For more information on making tanks and drinking water safe refer to our fact sheet: Water – make it safe to drink

For more information on bushfire support and information visit the DEECA Bushfire Recovery webpage or for more safety tips on bushfire aftermath visit Better Health Channel.

For important information on returning home after a bushfire, visit your relevant local, regional or state emergency websites.

Personal social and emotional wellbeing

In the immediate aftermath of a bushfire, it is normal for people to experience intense stress reactions. Most people recover without professional intervention within several months and maintain a healthy level of functioning over time.  

Typical responses to trauma experienced during and following disasters like bushfire include:  

For more suggestions check out the information sheet on Recovering from Bushfires which outlines some useful skills that will help you recover. Strategies include restoring helpful thinking patterns and problem-solving capacity, maintaining social connection, taking time for pleasurable activities and learning to manage emotional distress. All of these skills will assist you to navigate your family, community and farm business through a tough period following the bushfire. 

Some people who are impacted by bushfires may experience mental health disorders in the months or even years after the initial event. The impact of multiple disasters in close succession can be cumulative in its effect on an individual. 

Common mental health disorders following a natural disaster such as bushfire may include:  

Individuals experiencing any of these mental health conditions in the months and years following the natural disaster will benefit from effective treatments which are readily accessible through mental health professionals. Farmers are especially encouraged to seek help if they find themselves struggling in any of these ways.  

If you feel you or someone else needs help, go to our Support Hub to access support contacts. 

Fast facts:

References used for this topic

More information:

Better Health Channel
Bushfire aftermath – safety tips

Department of Energy, Environment and Climate Action (VIC)
Emergency and Bushfire Recovery Program

Vic Emergency
Recovering from a bushfire

Better Health Channel
Post-traumatic stress disorder (PTSD)

Australian Disaster Resilience Knowledge Hub
Community Recovery Handbook

Australian Psychological Society
Recovery from bushfires

Scabby mouth (Orf)

Scabby mouth is a disease caused by a virus that is common in sheep and goats and some other ruminants. This disease is referred to as contagious ecthyma, or orf in humans. Scabby mouth is very contagious among sheep and is most commonly detected by a scab appearing on the mouth, muzzle, teats, legs or feet (see photo).

Farmers and farm workers can catch scabby mouth when they have an abrasion that comes into contact with infected animals. They can also be infected accidentally when handling the Scabby mouth vaccine.  Human-to-human transmission is extremely rare.

Once infected, people usually have lifetime immunity.  No medical treatment is required for this virus. Normal wound management – keep the wound clean and covered – will see the orf heal in 4-6 weeks.

Red papules or lesions are symptoms in humans

Symptoms in humans

Lesions usually heal without treatment, but sometimes they can become infected. This is a particular concern for people with compromised immune systems.

People who have dermatitis, which is common among farmers, may get large lesions that are slow to heal.

Treatment

Prevention

Fast facts:

References used for this topic

More information:

Agriculture Victoria
Scabby mouth sheep

Department of Primary Industries (NSW)
Sheep Health – Scabby Mouth [PDF]

The Center for Food Security and Public Health
Contagious Ecthyma (2015)

Research & reviews:

Centres for Disease Control and Prevention
Human Infection with Orf Virus and Description of Its Whole Genome

Epidemiology and Infection
Erythema multiforme after orf virus infection: a report of two cases and literature review, 2015

Q Fever

About Q Fever

Q Fever is an infection that produces flu-like symptoms in humans but can progress to more serious symptoms and chronic illness in some cases. It is spread to humans from infected livestock and wildlife, although animals rarely show symptoms. It is most commonly transmitted by inhaling infected dust and contaminated droplets containing the bacterium – Coxiella burnetii. The bacterium is highly contagious within herds of domestic cattle, sheep, goats, and wild pigs. 

The bacterium is found in infected animals’ urine, faeces, birth fluids, the placenta of a foetus or newborn as well as in uterine discharges following birth. These materials will contain high concentrations of the bacterium. 

The organism is highly contagious within domestic herds and will spread quickly through stock. Once a herd is infected it will almost invariably spread to neighbouring stock, native and feral animals, and sometimes domestic cats and dogs. Once a herd is infected, it normally remains infected. 

Direct or indirect inhalation of the bacterium is the most common mechanism of human infection. However, the human infection can also occur via skin abrasions and splashes of infected material into the eye. The consumption of unpasteurised milk from infected cows and goats has accounted for small numbers of Q Fever cases. 

The Coxiella burnetii bacterium is resistant to heat, drying and many common disinfectants, allowing it to survive for lengthy periods in the environment. Infection can also be transmitted by direct contact with objects (boots, clothing) and ingestion (for example eating after you’ve handled animals and not washing your hands). 

Usually, Q Fever is an occupational disease of meat workers, farmers, and veterinarians. People who hunt and slaughter wild goats and pigs are also at risk. However, living in a regional or remote area puts you at high risk even if you don’t work with animals. 

Signs and symptoms of Q Fever

Diagnosis of Q Fever is made via a series of blood tests. Effective treatment includes antibiotic therapy. With early diagnosis, treatment is simple, and a good outcome can be expected. 

The use of personal protective equipment (gloves, P2 dust mask and waterproof overalls) will minimise your risk of exposure to infected body materials or inhalation of infected particles in the air. The most effective prevention strategy is immunisation against the disease and is achieved through vaccination with the Q Fever vaccine (Q –Vax). This can be given to at-risk people who are aged 15 years and over. 

Steps towards identifying, developing and registering Q Fever immunity

Initial – blood and a skin test

This is recommended to ascertain if the individual has previously been exposed to Q Fever – either naturally or by previous vaccination. In many cases, people have been unknowingly infected previously with a mild strain of the disease, which was not confirmed by a doctor as Q Fever. 

Interpretations – blood test and skin test

If interpretation confirms as – previously being infected with the disease, vaccination is unnecessary.

Implementation – Q-vax vaccination (if no immunity identified)

Once vaccinated, the vaccine will be recorded on the Australian Immunisation Register (AIR). People with an existing record with the Q Fever Register can access their information until 30/6/2025 at qfever.org. You may download your existing eStatement and have the details reported to the Australian Immunisation Register by a recognised vaccination provider. 

Contact your local GP or state health listed Q Fever provider for testing and vaccination services.

Find out more information on Q Fever visit Better Health Channel.

Fast facts:

References used for this topic

More information:

Australian Q Fever Register

Better Health Channel

US Centers for Disease Control and Prevention

Worksafe Victoria

Q Fever Facts

Clinical care:

Department of Health Australia
Information about Q Fever disease, vaccines and recommendations for vaccination from the Australian Immunisation Handbook

Royal College of Pathologists of Australia Manual
Q Fever

SA Health
Q Fever – including symptoms, treatment and prevention

Victorian Department of Health
Q Fever

Research & reviews:

Q Fever and Australian farmers: is the health system paying enough attention? A literature review (NCFH)

Open Veterinary Journal
Navigating Q Fever: Current perspectives and challenges in outbreak preparedness – PMC (nih.gov)

International Journal of Microbiology
Q Fever: Current State of Knowledge and Perspectives of Research of a Neglected Zoonosis

Australian Journal of Pharmacy
Q Fever and Australian farmers: is the health system paying enough attention? A literature review

Medical Journal of Australia
Seroprevalence of Q Fever among metropolitan and non‐metropolitan blood donors in New South Wales and Queensland, 2014–2015

AgriFutures Australia

Taking the Q (query) out of Q Fever

Psittacosis – Ornithosis

Psittacosis (sometimes called ornithosis) is an infection of the lung (pneumonia) caused by the bacterium Chlamydophila (Chlamydia). The bacterium is carried by both wild and domestic birds, which often show no sign of disease.

People who have close contact with birds, such as bird breeders pet shop employees, pet owners, poultry farm workers, abattoir workers, veterinarians (vets) and individuals who live near high-density native bird populations are at increased risk. This can include farmers with chickens, ducks, turkeys, geese, guinea fowl, or aviaries with pet birds. Exposure to psittacosis in pregnancy has been associated with maternal and foetal death.

Infection is caused by inhaling dust containing dried bird faeces or dry eye and nasal secretions from infected birds.

Symptoms of psittacosis may be often associated with the flu (flu-like) and include:

There have been reported cases in cattle, sheep, horses, cats and dogs. If the infection is contracted, treatment involves antibiotic therapy.

Find out more about this topic on Better Health Channel

Fast facts:

References used for this topic

More information:

Centres for Disease Control (US)
Psittacosis

Department of Health (Aust)
Psittacosis (ornithosis) case definition

BMC Infectious Diseases Journal
Animal sources for zoonotic transmission of psittacosis: a systematic review

The Journal of Obstetrics and Gynaecology Research
Gestational psittacosis: A case report and literature review

Clinical care:

Australian Government Department of Health
Psittacosis (ornithosis): CDNA National Guidelines for Public Health Units

NSW Health
Psittacosis

Australian bat lyssavirus

Australian bat lyssavirus (ABLV) is related to the rabies virus. Thankfully, lyssavirus is a rare disease in Australia and only three human deaths have been recorded since it was discovered in 1996.

People can be infected by bites or scratches from infected flying foxes or bats. There are vaccines to prevent infection and treatment after direct exposure can also be effective. It is important to seek treatment promptly if you have had contact with bats. 

If you are bitten or scratched by a bat, immediately wash the wound thoroughly with soap and water, apply an antiseptic and get immediate medical help.

Fast facts:

Prevention will depend on the ability to avoid exposure to bats, particularly if they are behaving unusually or unwell. If avoidance of the animal is not possible, then prior vaccination is recommended. If an exposure occurs (bite, scratch or exposure to saliva) then post exposure treatment with the rabies vaccine is advised.

References used for this topic

More information:

Better Health Channel
Australian bat Lyssavirus infection

Department of Agriculture and Fisheries (Qld)
Australian bat lyssavirus

SA Health
Rabies virus and Australian bat lyssavirus – including symptoms, treatment and prevention

Clinical care:

Australian Department of Health and Aged Care
Rabies and other lyssavirus
Australian Immunisation Handbook: Rabies and other lyssaviruses

NSW Health
Rabies and other lyssavirus infections

Research & reviews:

Microbiology Australia
The dynamic landscape of bat borne zoonotic viruses in Australia (2020) [PDF]

Australian Journal of General Practice
Australian bat lyssavirus (2018)

NSW Public Health Bulletin
Australian Bat Lyssavirus: Examination of post-exposure treatment in NSW [PDF]

Viruses
Recent Observations on Australian Bat Lyssavirus Tropism and Viral Entry (2014)

Biology (MDPI)
Emerging Rhabdoviruses and Human Infection

Leptospirosis

Leptospirosis is a disease caused by the Leptospira bacteria. People can catch Leptospirosis when they come in contact with the urine or birth products from infected animals. This disease is a particular risk for dairy and pig farmers.

Leptospirosis is also spread by rats and known as Weils disease. It usually enters the body through cuts or scratches in the skin. Banana farmers and sugar cane growers are at particular risk.

Leptospirosis causes a flu-like illness with symptoms including coughing, fever, chills, sore joints and general weakness. In 2022 (up to September) there were 135 reported cases in Australia. To prevent leptospirosis, vaccinate cattle, control rodents and wear protective clothing (gloves, boots, overalls, P2 dust mask, protective eyewear).

Fast facts:

References used for this topic

More information:

Meat and Livestock Australia
Leptospirosis

Queensland Health
Leptospirosis

Clinical care:

Centre for Disease Control (CDC)
Leptospirosis: Fact Sheet for Clinicians

World Health Organization (WHO)
Human leptospirosis: guidance for diagnosis, surveillance and control 2018

Research & reviews:

Australian Journal of General Practice
Leptospirosis: An important zoonosis acquired through work, play and travel (2018)

Medical Journal of Australia
Fatal leptospirosis presenting as musculoskeletal pain

Communicable Diseases Intelligence
An outbreak of leptospirosis associated with cattle workers during the wet season, in the Northern Territory of Australia, 2021.

Hendra virus

Hendra virus (HeV) is a rare, emerging zoonotic virus (a virus transmitted to humans from animals). It is spread by its natural host – fruit bats, and can then be passed from sick/infected horses to humans. Horses may be infectious for 72 hours prior to symptoms and until after disposal of the carcass.

It can cause severe disease which affects the lungs and brain of horses and humans. Symptoms of HeV in humans may range from a flu-like illness to fatal respiratory and neurological disease (WHO, 2020). There is no human vaccine for the Hendra virus and without prompt treatment, the virus is often fatal.

Take care when handling all horses. Wash and dry hands thoroughly after handling horses. Avoid contact with secretions (blood, urine, faeces, saliva, nasal secretions). Cover cuts/abrasions with occlusive dressings.

Photo courtesy of Dave Hunt, ABC.

Always wear gloves, masks and protective glasses when handling sick horses Vets should take particular care during post-mortems.

Reduce the risk of transmission from bats to horses by moving feed and water troughs away from areas where fruit bats feed or roost.

Fast facts:

References used for this

More information:

Australian Broadcasting Corporation (ABC)
Potentially deadly Hendra virus spreads further south in New South Wales

CSIRO
Hendra virus identification

Queensland Government
Hendra virus information for industry and horse owners

Better Health Channel
Hendra Virus

Australian Veterinary Association
Hendra Virus

Clinical care:

Queensland Health
Hendra virus infection for healthcare workers [PDF]

NSW Health Department
Hendra virus monitoring

Research & reviews:

Microbiology Australia
The dynamic landscape of bat borne zoonotic viruses in Australia (2020)

Medical Journal of Australia
Hendra virus infection in a veterinarian

Queensland Government
Hendra virus research

Hand washing

Washing your hands is one of the simplest, yet most effective, things you can do to protect your health and the health of others. It removes dirt, bacteria and viruses before they make you or others sick. 

Farmers routinely encounter potential sources of disease and illness including dirt, farm animals, domestic pets, farm chemicals, fertilisers, pesticides, medications, solvents and soil. Farmers and farm workers can also pass on contaminants to others through produce contaminated by bacteria or viruses due to poor hand washing. 

Five simple steps to clean your hands effectively

  1. WET
    • Wet your hands.
    • Turn off the tap and apply soap.
  2. LATHER
    • Rub your hands together with the soap.
    • Make sure you soap up to the wrists, get the back of your hands, in between your fingers and underneath your fingernails.
  3. SCRUB
    • Continue for at least 20 seconds.
    • Don’t have a timer? Sing ‘Happy Birthday’ in your head twice!
  4. RINSE
    • Rinse your hands in clean, running water.
    • If you’re out on the farm and clean, running water is not available, use what water is available, or keep some alcohol wash handy (containing at least 60% alcohol).
  5. DRY
    • Thoroughly dry your hands with a clean towel or let them air dry.

When should you wash your hands?

The few minutes spent washing your hands throughout the day can prevent an illness that could keep you (or others) out of action for days, weeks or even longer.

Fast facts:

References used for this topic

More information:

Better Health Channel
Hand washing – Why it’s important

Centers for Disease Control (US)
About hand washing

Occupational Dermatology
Skin care in the workplace

The Nemours Foundation (US)
Hand washing: Why it’s so important

Healthdirect
Hand washing (provides a downloadable poster on effective hand washing)