Havrix

Children and Adolescents : Primary immunization for children and adolescents (12 months through 18 years of age) consists of a single 0.5 mL dose and a 0.5 mL booster dose administered anytime between 6 and 12 months later. The preferred sites for intramuscular injections are the anterolateral aspect of the thigh in young children or the deltoid muscle of the upper arm in older children. Adults : Primary immunization for adults consists of a single 1 mL dose and a 1 mL booster dose administered anytime between 6 and 12 months later. In adults, the injection should be given in the deltoid region.

The hepatitis A virus belongs to the picornavirus family. It is one of several hepatitis viruses that cause systemic disease with pathology in the liver. The incubation period for hepatitis A averages 28 days (range: 15 to 50 days). The course of hepatitis A infection is extremely variable, ranging from asymptomatic infection to icteric hepatitis and death. The presence of antibodies to HAV confers protection against hepatitis A infection. However, the lowest titer needed to confer protection has not been determined.

Transient soreness, erythema, induration at inj site. Fever, malaise,

Hypersensitivity. Vaccines prepared in egg cultures are contraindicated in patients with hypersensitivity reactions to egg. Severe immunodeficiency. Malignant disease being treated with chemotherapy or radiotherapy and for at least 6 mth after stopping treatment. Patients with compromised immune system such as those on high-dose systemic corticosteroids, immunosuppressants or HIV positive.

Alcohol or disinfectant used for cleaning the skin prior to inj should be allowed to evaporate completely before vaccination to prevent vaccine inactivation.

Reduced response to vaccination when used concurrently with immunosuppressants such as corticosteroids or antineoplastics.