By Kristen Baird


Influenza is a common viral illness which afflicts thousands of Americans each year. Often underestimated, the flu can lead to serious complications in some individuals resulting in hospitalization and unfortunately death in the worst cases. People who have weakened immune systems, the elderly, and infants are the most at risk. Regular immunization of all persons over the age of six months is the best prevention. By understanding the need for flu shots Mobile AL residents will recognize how essential it is to have this done every year.

Immunization introduces a weakened form of the influenza virus into the body, which causes it to produce antibodies against this microorganism. It takes about two weeks from when the inoculation is received for these antibodies to form. Vaccines typically offer protection against both "A" and "B" influenza types.

Most flu vaccines are one of two types, trivalent or quadrivalent. Trivalent shots give protection from three viruses, normally HINI and H3N2 which are "A" viruses, and one "B" type. Quadrivalent offers the same immunity, but with the addition of one other "B" virus. Besides the standard injections, the vaccine may also be administered in the form of a nasal spray which can be given to patients between 2 and 49 years of age.

Physicians often prefer to use the nasal spray vaccine for healthy children between the ages of 2 and 8, but it this is not possible, a regular injection will be given instead. Other patients will be inoculated with a regular vaccine, high-dose vaccine, or intradermal injection according to what the doctor deems most suitable.

Certain types of vaccinations are indicated based on the age of the patient. Only those over the age of 65 can be given a high-dose vaccine, while intradermal injections are to be used on people between the ages of 18 and 64. Many vaccinations are prepared with eggs as a base, so those who are allergic to eggs will need an alternative such as vaccines prepared in cell cultures.

Flu season in the United States typically begins in October and ends in May. It is recommended that everyone who is at least six months of age should receive the immunization each year prior to the start of the season.These vaccines usually become available sometime in August. Distribution continues throughout the autumn months and continues into the peak season which usually occurs around January.

Vaccinations are widely available in most communities and may be offered in the workplace, at school, at a college health center, and of course at the doctor's office and in public health clinics. Yearly immunization is recommended because people's immunity gradually lessens over time, and also because the strains of flu which are prevalent tend to vary from one year to the next.

Sometimes a person may still get the flu even after being vaccinated, although it will greatly reduce the severity of the illness. Side effects are noted in some individuals following immunization as well. Those receiving an injection may develop a low-grade fever and soreness at the injection site, and those who are given the nasal spray may experience a runny nose, sore throat, or headache, but these short-lived symptoms are still better than getting very sick with influenza.




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