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Which health service do I need Find a hospital
  • Conditions & treatments
    Conditions & treatments
    • Bladder, kidney and urinary system
    • Blood
    • Bones and joints
    • Brain and nerves
    • Cancer
    • Diabetes
    • Ear, nose and throat
    • Emergencies and first aid
    • Eyes
    • Food and water-borne diseases
    • Heart
    • Immune system
    • Infectious diseases
    • Liver
    • Lungs
    • Men's health
    • Older people's health
    • Sexually transmitted infections (STIs)
    • Skin
    • Stomach and bowel
    • Women's health
    • Home equipment
    • Medicines and prescriptions
    • Tests, procedures and surgeries
  • Immunisations
    Immunisations
    • National Immunisation Schedule
    • Vaccines given in Aotearoa
    • When to immunise
    • Book a vaccine
    • Catching up on missed immunisations
    • Preparing for a vaccination appointment
    • Immunising your whānau
    • Benefits of immunisation
    • Vaccine side effects, reactions and safety
    • How vaccines work
    • Get a copy of your immunisation record
  • Keeping well
    Keeping well
    • Activity and diet
    • Cancer screening
    • Emergencies and natural disasters
    • Healthy homes and environments
    • Teeth and gums
    • Transgender and gender diversity
    • Travel
    • Safe sex
    • Workplace wellbeing
  • Pregnancy & maternity
    Pregnancy & maternity
    • Pregnancy and immunisations
    • Fertility
    • Finding out you are pregnant
    • Having a healthy pregnancy
    • Screening
    • Lead maternity carers and midwives
    • Miscarriage
    • Labour and birth
    • Your health after birth
    • Postnatal depression
    • Breastfeeding
  • Mental wellbeing
    Mental wellbeing
    • Alcohol and drugs
    • Alcohol and drug services
    • Assault and abuse
    • Mental health conditions
    • Crisis assessment teams
    • Where to get help for mental health
    • Mental health medication
    • Mārama — feedback survey for mental health and addictions
    • Psychologists
  • Locations
    Locations
    • Auckland
    • Bay of Plenty
    • Canterbury
    • Hawke’s Bay
    • Manawatū-Whanganui
    • Nelson Marlborough
    • Northland
    • Otago and Southland
    • Rotorua and Taupō
    • South Canterbury
    • Tairāwhiti
    • Taranaki
    • Wellington, Hutt and Kapiti
    • West Coast
    • Waikato
    • Wairarapa
  • Services
    Services
    • Find the right healthcare for you and your whānau
    • Emergency departments (ED)
    • Public hospitals
    • General practices
    • Online and over-the-phone healthcare
    • Pharmacies
    • Dental care
    • Pregnancy, birth and children services
    • Publicly funded health and disability services
    • Sexual health clinics
    • National Public Health Service
    • Support services
    • Your rights using a health or disability service
    • Calendar of health events
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    1. Home
    2. Conditions and treatments
    3. Infectious diseases

    Infectious diseases

    Find an infectious disease

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    Avian influenza

    Avian influenza is generally only found in people who have had a lot of close contact with infected birds or other infected animals.

    Campylobacter

    Campylobacter is a water and foodborne illness caused by bacteria. It is a common cause of tummy upsets (gastroenteritis). If you eat food or water that has campylobacter in it you can become unwell with diarrhoea and stomach pains.

    Chickenpox

    A highly contagious disease most common in tamariki that causes small itchy blisters on the skin.

    Chikungunya

    A disease caused by the bite of chikungunya-infected mosquitoes. These mosquitoes are not found in Aotearoa New Zealand.

    Cholera

    Cholera is a disease that causes severe runny poohs (diarrhoea) and dehydration. It can be easily treated.

    COVID-19

    Cryptosporidium

    A parasite found in the gut of infected people and animals. People become infected when they swallow the parasites.

    Dengue

    An infection spread by mosquitoes. It is not usually serious and gets better on its own, but it can be severe in some people.

    Diphtheria

    A serious infectious disease that can cause throat infections that can lead to breathing difficulties. Diphtheria is rare in Aotearoa.

    Ebola

    A viral disease that can cause bleeding, organ failure, and death. There is currently no ebola in Aotearoa New Zealand. The main risk of getting it is from travel to countries with an outbreak or after one.

    E. coli

    Most types of E. coli are harmless. But some can cause diarrhoea (gastroenteritis).

    Enterovirus D68

    Enterovirus D68 is a virus that can cause mild to severe flu-like (respiratory) illness.

    Flu (influenza)

    Flu spreads quickly and causes fever, runny nose, cough or upset stomach. Different strains can make you sick each year.

    Giardia

    A parasite (living thing) found in the guts of people and animals such as cattle, sheep, cats and dogs. It is also found in infected water such as lakes and streams.

    Haemophilus influenzae disease type b (Hib)

    A bacteria that causes serious illness in tamariki. It can cause swelling of the brain or throat.

    Hand, foot and mouth disease

    A common viral infection. It causes mouth ulcers, and spots on the hands and feet. It mostly affects tamariki under 10.

    Hepatitis A

    An infectious liver disease caused by a virus. It is more common in developing countries. Some travellers need a vaccine.

    Hepatitis B

    Hepatitis B is caused by a virus that attacks and damages the liver. Find out about symptoms, causes, spread and treatment.

    Hepatitis C

    A virus that causes inflammation of your liver. If left untreated, Hepatitis C can cause liver disease (cirrhosis), liver failure and liver cancer.

    Hepatitis E

    Hepatitis E is a virus that causes inflammation of the liver. It is found in many countries, such as India, Asia, Africa and Central America, but is very rare in Aotearoa New Zealand. Some people have no symptoms or only a very mild illness. It can be very serious if you are pregnant.

    HIV and AIDS

    HIV is a virus that damages the cells in your immune system and weakens its ability to fight everyday infections and diseases.

    Human papillomavirus (HPV)

    Common viruses passed on by skin contact. People usually have no symptoms. Some types of HPV cause genital warts, cell changes or cancer.

    iGAS

    iGAS infections are very serious infections. They are caused when the Group A Streptococcus (GAS) bacteria infects an area of the body which normally does not have any bacteria growing in it, causing you to become very sick. This can include areas of the body such as in the blood, skin, bones, joints, birth canal after having a baby, and other internal organs.

    Leptospirosis

    Leptospirosis is a bacterial infection caused by contact with the urine (wee) of infected animals, or contaminated soil or water.

    Listeriosis

    A food-borne bacteria that can make you sick. Usually causes few or no symptoms. But some people are more at risk of severe disease.

    Malaria

    There are 5 types of malaria that can infect people. Malaria is a virus caused by the bite of an Anopheles mosquito carrying the virus. These mosquitoes are not found in Aotearoa New Zealand.

    Measles disease

    Meningococcal disease

    A bacterial infection that can cause meningitis or blood poisoning leading to permanent disability, deafness or death. Early treatment is very important.

    Mpox (monkeypox)

    A virus that causes a rash or sores. It spreads from close contact. People with mpox may have to isolate.

    Mumps

    A disease that spreads easily and can cause swelling in the glands around the face. For some people it can be serious and cause symptoms that last a long time.

    Pneumococcal disease

    Infections caused by bacteria that range from mild ear and sinus infections to serious lung and blood infections.

    Polio

    A viral disease that spreads very easily and can cause muscle weakness or paralysis. Cases are increasing globally and could come here.

    Preventing the spread of respiratory illnesses

    Find out what to do if you have symptoms of a respiratory illness and how to reduce the risk of spreading it to other people.

    Rheumatic fever

    Rheumatic fever is a serious but potentially preventable illness that often starts with a sore throat or a skin infection. Without treatment, these can cause rheumatic fever. Rheumatic fever can damage your heart — this is called rheumatic heart disease.

    Rotavirus

    A viral infection that causes runny poos, vomiting and fever. It most often affects pēpi and tamariki and can be serious.

    Rubella

    A contagious viral infection that causes a spotty rash. Rubella is usually mild — but can cause problems if you are pregnant.

    RSV (respiratory syncytial virus)

    RSV is a common respiratory illness that causes lung and respiratory tract infections. Symptoms are similar to a cold and tend to get better on their own after 10 days. In some cases RSV can cause more serious complications.

    Shingles

    A painful blistering rash. Anyone who had chickenpox is at risk of developing it. The best protection against shingles is immunisation.

    Slapped cheek

    Slapped cheek is a viral infection caused by the parvovirus. It causes bright red cheeks and is most common in tamariki (children). Some adults can get slapped cheek.

    Tetanus

    A rare but serious disease that is fatal if it is not treated. It is caused by a bacteria toxin getting into a wound.

    Tuberculosis

    Tuberculosis (TB) is caused by infection with the 'Mycobacterium Tuberculosis'. It usually affects the lungs but can also affect other parts of the body. While it can make some people very sick, it is also treatable and can be cured with special antibiotics.

    Whooping cough

    A long coughing illness that spreads easily between people. It can be very serious for pēpi, tamariki and older adults.

    Yellow fever

    Yellow fever is caused by a virus and mainly spread by the bite of an infected 'Aedes' mosquito. These mosquitoes are not normally found in Aotearoa New Zealand. Yellow fever is almost always caught overseas. Outbreaks are most common in Africa and Latin America. Immunisation is required for people travelling to areas where the virus is common, such as parts of tropical South America and sub-Saharan Africa.

    Zika virus

    Zika is a virus mainly spread by mosquito bites. The mosquitoes that spread Zika virus are not normally found in Aotearoa New Zealand.
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