What Is Chickenpox?
Chickenpox is caused by the varicella-zoster virus (VZV) and spreads from person to person through the air, respiratory droplets from a runny nose, saliva or phlegm, or by direct contact with the fluid-filled blisters of an infected person.
In Thailand, the chickenpox vaccine is available both as a single vaccine and as a combination vaccine (protecting against measles, mumps, rubella and chickenpox in one shot). It is made from a live but weakened virus that stimulates the immune system to prevent the disease.
Fever, Aches and Clear Blisters — Signs of Chickenpox
Symptoms begin with fever, body aches or a sore throat and loss of appetite, followed by small clear blisters appearing all over the body, usually with itching. The rash then crusts over and clears within about one to two weeks.
Chickenpox is usually mild, but severe complications — pneumonia and encephalitis — can occur in newborns, adults, pregnant women and people with weakened immunity.
The Chickenpox Vaccine
The vaccine is made from a weakened form of the virus. Most people who are vaccinated will not get the disease; only a small number may still be infected, but with milder symptoms and fewer complications than those who are unvaccinated.
Who \”Should\” Get the Chickenpox Vaccin
- People who have never had chickenpox
- Children under 13: two doses — first at 12–18 months, second at 4–6 years (or at least 3 months after the first)
Teens and adults aged 13+: two doses at least 1 month apart
Who \”Should Avoid\” the Chickenpox Vaccine
- Anyone with a previous severe allergic reaction to the chickenpox vaccine
- People allergic to gelatin or to the antibiotic neomycin
- Pregnant wome
Possible Side Effects After the Vaccine
- A severe allergic reaction is possible but very rare
- Possible reactions: pain, redness and swelling at the injection site, low-grade fever, or a mild chickenpox-like rash that is not severe and resolves on its own
Use a cold compress for pain and swelling; a fever reducer for low-grade fever; consult a doctor for any other unusual sympto\
Precautions Before the Chickenpox Vaccine
- Women who receive the vaccine should use contraception for at least 3 months afterwards
- Breastfeeding women should consult a doctor before vaccination
- If in doubt, consult a doctor
Medical Disclaimer
This article is for health education only and cannot replace diagnosis, treatment or advice from a licensed physician. If you have symptoms or concerns, please consult a doctor directly.
Through the air, respiratory droplets from a runny nose, saliva or phlegm, or by direct contact with an infected person’s blisters.
Most people get chickenpox once and develop immunity, but the virus stays dormant in the body and can later reappear as shingles. Ask a doctor about prevention.
Children under 13 need two doses, usually given at 12–18 months and 4–6 years. Teens and adults aged 13 and older need two doses at least 1 month apart.
Get Immediate Care at Dr.Pad Clinic
If you or someone you know develops symptoms of pneumonia while in Koh Lanta, don’t delay — see a doctor promptly. Dr.Pad Clinic provides medical assessment and treatment for respiratory infections and other urgent medical conditions.
We communicate in English, Thai, and Chinese, and we can assist with travel insurance claims.
📲 WhatsApp: +66 95 515 9555 | 🌐 www.drpadclinic.com