Reaction after chickenpox vaccine

With the development of science and technology, medical care has also developed successively. Some diseases that were considered serious and incurable in ancient times have been cured today. Chickenpox is one of them. Nowadays, children generally need to be vaccinated against chickenpox. People who have been vaccinated against chickenpox generally will not get chickenpox, which plays a defensive role. There are some contraindications and reactions to the varicella vaccine, and we need to pay attention to them.

Many people have received the chickenpox vaccine, and some people will have some reactions to the vaccine, while some people will not. It varies from person to person, but it is best for people who are going to receive the chickenpox vaccine to learn more about it, so that they will feel more at ease. Let’s take a look at the reactions after the chickenpox vaccine.

There is generally no reaction after vaccination with the varicella vaccine. A few people may have a brief transient fever or mild rash within 6-18 days of vaccination, which generally disappears on their own without treatment. Symptomatic treatment can be given if necessary.

The immunity provided by the varicella vaccine lasts longer. Surveys in the United States showed that 93% of children and 94% of adults had VZV antibodies five years after immunization, and 87% of children and 94% of adults had cell-mediated immunity. A recent report on vaccination by Ampofo et al. showed that the incidence and severity of breakthrough varicella did not increase during the 21 years since 1979, suggesting that there is no significant waning of immunity after vaccination in adults.

Six weeks after vaccination, the seroconversion rate was greater than 98%. For people over 13 years old, the seroconversion rate can reach 100% after two doses (with an interval of 6 to 10 weeks). Protection against varicella is conferred through immunity within 72 hours of exposure to natural varicella infection.

Contraindications: 1. The overall reactogenicity is very low in all age groups. Low fever and mild rash may occur occasionally after injection, but adverse reactions are usually mild and disappear on their own.

2. Contraindications: Vaccination should be postponed for patients with acute severe febrile diseases. People who are systemically allergic to neomycin, those with a white blood cell count of less than 1200/m3, and pregnant women should not be vaccinated.

Parents who want to vaccinate their children against chickenpox should first learn more about the vaccine so that if their children develop any symptoms after vaccination, they will be aware of it. The benefits of getting the chickenpox vaccine naturally outweigh the disadvantages, and you should also have some understanding of your child's physical constitution before you can safely get the chickenpox vaccine.