Which type of vaccine is varivax?

What drug class is varicella vaccine?

What is Varivax and how is it used? Varivax is a prescription medicine used to as a vaccine as an immunization against Chickenpox (Varicella). Varivax may be used alone or with other medications. Varivax belongs to a class of drugs called Vaccines, Live, Viral.

Is varicella an attenuated vaccine?

There are two chickenpox vaccines approved for use in the United States: one single antigen vaccine and one combination vaccine. Both vaccines contain live attenuated (weakened) varicella-zoster virus.


VARIVAX is administered as an approximately 0.5-mL dose by subcutaneous injection into the outer aspect of the upper arm (deltoid region) or the anterolateral thigh. Do not administer this product intravascularly or intramuscularly.

Is VARIVAX subcutaneous?

Refrigerator-stable VARIVAX, when reconstituted as directed, is a sterile preparation for subcutaneous injection. Each approximately 0.5-mL dose contains a minimum of 1350 plaque-forming units (PFU) of Oka/Merck varicella virus when reconstituted and stored at room temperature for a maximum of 30 minutes.

Who gets chickenpox vaccine?

CDC recommends two doses of chickenpox vaccine for children, adolescents, and adults who have never had chickenpox and were never vaccinated. Children are routinely recommended to receive the first dose at age 12 through 15 months and the second dose at age 4 through 6 years.

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How many varicella shots are required for adults?

The varicella vaccine is given in two doses. A child should have the first shot at ages 12-18 months. The second shot should be given at ages 4-6 years. Older children and adults should have two shots, with four to eight weeks between the first and second shot.

Does chickenpox vaccine last for life?

Duration of Protection

It is not known how long a vaccinated person is protected against varicella. But, live vaccines in general provide long-lasting immunity. Several studies have shown that people vaccinated against varicella had antibodies for at least 10 to 20 years after vaccination.

Do adults need a varicella booster?

CDC recommends 2 doses of varicella (chickenpox) vaccine for children, adolescents, and adults to protect against varicella. Children are routinely recommended to receive the first dose at age 12 through 15 months and the second dose at age 4 through 6 years old.

Can chickenpox happen after vaccination?

Can you get chickenpox if you’ve been vaccinated? Yes. About 15% – 20% of people who have received one dose of varicella (chickenpox) vaccine do still get chickenpox if they are exposed, but their disease is usually mild.

Is MMR subcutaneous or IM?

Administering the MMR Vaccine

The dosage for both MMR and MMRV is 0.5 mL. Both vaccines are administered by the subcutaneous route. The minimum age for both MMR and MMRV is 12 months of age. The typical age for the second dose of either vaccine is at 4 to 6 years of age.

Why is varicella vaccine given subcutaneous?

In general, vaccines containing adjuvants (a component that enhances the antigenic response) are administered IM to avoid irritation, induration, skin discoloration, inflammation, and granuloma formation if injected into subcutaneous tissue.

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