The article was consulted professionally by Specialist Doctor II Huynh Thi Diem Thuy – Vaccine Consultant – Pediatrics – Newborn Department, Share99 Central Park International Health Hub.
Most cases of chickenpox are relatively mild but it can also be serious, even life-threatening in a very small percentage of people. Chickenpox vaccination is the most optimal preventive measure for everyone.
Before the chickenpox vaccine was licensed in the United States in 1995, there were about 100 deaths and more than 11,000 hospitalizations a year from chickenpox. The disease is at risk of serious, life-threatening complications, especially babies, the elderly and people with poor immune systems.
Anyone can develop serious complications and there is no predictable way. Therefore, proper vaccination is extremely important for the prevention of chickenpox, as well as limiting dangerous complications caused by the disease.
1. Who needs to be vaccinated against chickenpox
1.1. Children from 12 months old under 13 years old
The only dose is 0.5 ml. In case of high risk, the dose may be considered again.
1.2. People 13 years and older
No injections: 2 doses are given 4-8 weeks apart.
If you have been injected before the age of 12, if the risk is high, consider a 1-shot injection.
1.3. People with poor immune systems and no immunity to chickenpox
Patients may be advised to get the chickenpox vaccine after they receive advice from a doctor. Those people may be:
People living with HIV:
Children over 12 months of age are HIV positive with a CD4+ lymphocyte ≥15%.
People with HIV older than 8 years of age have cd4+ lymphocyte ≥200 cells/L.
There is still a lack of data on chickenpox vaccine use for adolescents and adults infected with HIV. The immunity of this group may be lower than that of the younger group from 1-8 years old. The benefits of chickenpox vaccination may outning the risk of serious diseases caused by chickenpox infection. Therefore, chickenpox vaccination should be considered in this group.
If vaccinating a person with HIV leads to clinical illnesses, Acyclovir can be used to help prevent severe illness. People living with HIV who are eligible for vaccination should get two doses of monogen chickenpox vaccine and the chickenpox vaccination schedule will be at least 3 months apart. Infected children, adolescents or adults should not be vaccinated against chickenpox in combination with measles, mump, rubella.
People with poor immune systems, including:
- People who use body steroids under certain conditions such as asthma and those who are using steroids <2mm/kg thể trọng hoặc tổng số <20mg/ngày của thuốc tiên dược hoặc tương đương và không bị suy giảm miễn dịch. There is still a lack of data on who uses inhalers, noses or topical drugs that can be safely vaccinated. However, based on clinical experience these people often have a good tolerance for chickenpox vaccines. Some experts recommend retaining steroids for 2-3 weeks after chickenpox vaccination if that can be done safely.
- Those who receive high doses of body steroids (≥2mg/kg/day or ≥20mg/day or equivalent to this drug for 2 weeks) if steroid therapy is discontinued for 1 month.
- People with leukemia, lymphoma or other melanoma have been in remission and have not received chemotherapy for 3 months. Children with leukemia who are in remission and have no evidence of immunity to chickenpox should only be vaccinated against chickenpox with the guidance of a doctor and access to anti-virus therapy in case of complications.
People with immuno-deterioration should to some extent not be vaccinated against chickenpox in combination with measles, mump and rubella.
1.4. Other subjects
Chickenpox vaccine plays a particularly important role with:
- Caregivers or stay with people with poor immune systems.
- Residents and staff at the nursing center.
- College students.
- Prisoners and wardens.
- Women are not yet pregnant but are of reproduction age.
- Adolescents and adults live with them.
- International tourists.
2. Who does not need to be vaccinated against chickenpox?
- Those who have evidence of immunity against the disease.
- A person should not be vaccinated against chickenpox if they have ever had a life-threatening allergy to a previous dose of chickenpox vaccine or any component of the vaccine, including gelatin or neomycin antibiotics.
- People who are moderately or severely ill at the time of vaccination, they can move the vaccination epidemic once they have recovered to their health.
- Pregnant women are not vaccinated against chickenpox. They should wait until the completion of the birth. Women should not become pregnant for 3 months after the chickenpox vaccination.
3. Where should chickenpox vaccination be vaccinated to ensure safety?
Currently, Share99 International Health Hub is providing varivax 0.5ml chickenpox vaccination service manufactured by MSD (USA). MSD's Varivax vaccine was licensed for circulation by the Drug Administration – Ministry of Health on July 23, 2019.
Customers who choose to vaccinate at Share99 will enjoy the following benefits:
- A team of experienced, professional pediatric doctors and nurses, understand the child's psychology and apply effective pain relief to the child during vaccination.
- The vaccine is imported and stored in a modern cold storage system, with a Cold chain meeting GSP standards, keeping the vaccine in the best condition to ensure quality.
- Children are fully screened for physical and health issues, advice on vaccines and vaccination regimens, how to monitor and care for children after vaccination before prescribing vaccinations according to the latest recommendations of the Ministry of Health and the World Health Organization.
- 100% of vaccinated children are monitored 30 minutes after vaccination and re-evaluated before leaving.
- Be monitored generally before, during and after vaccination at Share99 Health System and always have emergency ekip ready to coordinate with the vaccination department to handle cases of antisymistryresponse, respiratory failure – stop cyclic, ensure timely handling, correct regimen when incidents occur.
- The vaccination room is airy, has a play area, helping children feel comfortable and psychologically good before and after vaccination.
- Parents will receive a reminder message before the date of vaccination and the child's vaccination information will be synchronized with the national immunization information system.
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Source: cdc.gov; webmd.com
- Guidelines for monitoring post-vaccination responses in children
- Chickenpox: Causes, Symptoms, Complications and Treatment
- Note when applying Acyclovir chickenpox topical medication