Health risks
Altitude sickness Bird flu Chickenpox Chikungunya Cholera COVID-19 Dengue fever Diphtheria DTP Ebola Flu Haemophilus influenzae type b (Hib) Hepatitis A Hepatitis B Human papillomavirus (HPV) Influenza A Japanese encephalitis Lassa fever Legionella Lyme disease Malaria Meningococcal disease MMR Mpox Pneumococci Polio Rabies Rotavirus Schistosomiasis Shingles STI – Chlamydia STI - Gonorrhoea STI - Hepatitis B STI - HIV and AIDS STI - Syphilis STI - Viral infections Tetanus Thrombosis Tick-borne encephalitis Travellers' diarrhoea Tuberculosis Typhoid fever Viral meningitis West Nile fever Whooping cough Yellow fever Zika virus
Health risks

Chickenpox
Chickenpox is a highly contagious disease caused by the varicella zoster virus (VZV), a type of herpes virus. The illness is usually mild. In the Netherlands, over 95% of children contract chickenpox by age six. In young children, it often resolves without serious complications.
Where is chickenpox found?
Chickenpox is prevalent worldwide, with most infections occurring in childhood. In the Netherlands, over 95% of children under six have had chickenpox. Annually, about 265 patients, mainly children under four, are hospitalized due to chickenpox.
What are the symptoms?
- Skin rash with fluid-filled blisters starting on the head and trunk, spreading over the body
- Fever
- General malaise
- Bacterial infections like sepsis, pneumonia, and meningitis
- Later reactivation: shingles
How to prevent chickenpox?
Chickenpox is highly contagious and can be passed on even before symptoms appear. This makes it difficult to prevent infection. The vaccine is given in two doses.
More information
For more details on chickenpox, visit the RIVM information page: Chickenpox | RIVM.