Each year, there is an influenza or flu season. The influenza can have varying effects in a population depending on factors associated with seasonal weather patterns, the type of influenza strain, and number of people vaccinated. The influenza usually negatively impacts those who are immunocompromised or those with vulnerable immune systems. The Plymouth Public Health Department strongly encourages hand washing, coughing or sneezing in your elbow crease, and cleaning/disinfecting surfaces as first lines of defense to prevent the transmission of influenza. Acquiring an influenza vaccination from your healthcare provider is always your best defense.