Inactivated influenza vaccine

Inactivated Influenza Vaccine, commonly referred to as the flu shot, is a vaccine administered to help prevent infection caused by the influenza virus. It contains inactivated, or non-infectious, virus particles derived from three strains of influenza known to circulate in the global population during a particular season. By stimulating the immune system with these non-infectious particles, the vaccine prepares the body to fight off a genuine influenza infection more effectively if exposure occurs.
The flu shot is administered annually to individuals above the age of six months, particularly high-risk populations such as the elderly, pregnant women, young children, and those with chronic health conditions. This helps to reduce the incidence and severity of influenza-related illnesses and hospitalizations. In addition, mass vaccination is encouraged to achieve herd immunity, protecting communities at large from the virus.
As the composition of the influenza virus mutates rapidly, the formulation of the vaccine is reviewed and adjusted yearly based on expert advice to ensure optimal protection against the current circulating strains. Although not 100% effective, the vaccine remains the best preventative measure available against the influenza virus, thereby contributing to the overall public health strategy.