Influenza vaccines sickle cell disease

Influenza vaccine. Influenza vaccine is recommended annually for children age > 6 months with certain risk factors (including but not limited to asthma, cardiac disease, sickle cell disease, HIV, diabetes see MMWR. 2001 50(RR-4) 1-44), and can be administered to all others wishing to obtain immunity. Children aged <12 years should receive vaccine in a dosage appropriate for their age (0.25 mL if age 6-35 months or 0.5 mL if age >3 years). Children aged <8 years who are receiving influenza vaccine for the first time should receive two doses separated by at least 4 weeks. 

The trivalent inactivated influenza vaccine can be administered to all age groups and risk populations. It is recommended that the vaccine be administered yearly to children older than 6 months of age at risk for complications from influenza, such as those with asthma, cardiac disease, sickle cell disease, human immunodeficiency virus (HIV) infection, diabetes, and other conditions that compromise respiratory function. Healthy children 6 to 23 months of age should be vaccinated because of the increased risk for influenza-related... 

Individuals with sickle cell disease vaccinated with the TIIV between 1991 and 2006 were evaluated. No significant association between vaccination and hospitalisation for sickle cell crisis was foxmd (IRR ratio 0.92,95% Cl 0.66-1.28). This large study does not support the suggested association between influenza vaccination and sickle cell crises [67 ]. 

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