Yes, chickenpox is highly contagious and can affect both children and adults. This common illness, sometimes referred to as "trai phong" or "trai ra" in folk terms, is caused by the Varicella zoster virus. It typically manifests as distinctive, itchy blisters that appear primarily on the body and face, and occasionally on the scalp, causing significant discomfort.
The virus spreads easily through various routes. Direct transmission occurs via respiratory droplets from an infected person's nose and throat, or through contact with ruptured blisters. Indirect transmission is also possible when individuals touch surfaces contaminated with virus-laden secretions, such as floors, furniture, doorknobs, or towels. Furthermore, people without immunity can contract chickenpox if they come into contact with the blisters of someone suffering from shingles, as shingles results from the reactivation of the same virus that causes chickenpox.
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Patients with severe chickenpox complications receive treatment at the National Hospital for Tropical Diseases. Photo: Hospital provided |
The virus can be transmitted one to two days before any skin lesions appear, making early prevention challenging. Contagion continues for at least 5 days after the first blisters emerge. Approximately 90% of individuals exposed to the virus who lack immunity are likely to contract the disease.
To prevent chickenpox, it is essential to maintain rigorous hand hygiene and keep living and working environments clean. Individuals should avoid sharing personal items, steer clear of contact with chickenpox patients and shingles blisters, and ensure they are vaccinated.
Vietnam offers several types of chickenpox vaccines for both children and adults, with full vaccination providing up to 98% protection against the disease. Available options include a Belgian vaccine, suitable for children aged 9 months and older, as well as adults. An American vaccine is available for children from 12 months of age and adults. Additionally, a combined American vaccine protects against chickenpox, measles, mumps, and rubella, and can be administered from 12 months of age.
Dr. Nguyen Tien Dao
Medical Manager, VNVC Immunization System
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