Vaccination is the most effective way to prevent influenza and its possible complications.
The flu season in the Northern Hemisphere is from October 1 to March 31 of the following year. This period is the period when flu cases gather the most in the Northern Hemisphere. However, influenza does not always behave the same because there are many variables that influence it, from climate to population density and other factors, with population vaccination particularly prominent.
Although the best way to prevent the flu is Annual seasonal vaccinationsSometimes, this formula doesn’t quite work, and the range can be between 50-70%.
To understand what the next flu season will look like, we must analyze how the virus behaves in the Southern Hemisphere.This season in this hemisphere is one of milder activity, so it is expected that we will have a Influenza activity is very active in the Northern Hemisphere. But that’s not certain yet.
Typically, case numbers accumulate for four to five weeks during flu season; then enter a plateau that may last a month; eventually recording a longer decline.
This pattern shows Influenza activity is concentrated during the two or two and a half months of fall and winter.
The earlier the vaccine is administered, the sooner herd immunity will arrive. Vaccinations now begin in the autumn.
Now, The world is interconnected Influenza viruses can appear at any time of the year, although only occasionally.
The main route of infection is through inhalation of aerosols produced when an infected person talks, coughs or sneezes through the respiratory tract, and then direct contact with contaminated people or objects. Additionally, the incubation period is variable, ranging from one to four days.
What does the flu vaccine look like?
The components of the vaccine can be quadrivalent (containing two influenza A virus subtypes and two influenza B virus lineages) or trivalent (one of two influenza B virus lineages), with several subtypes circulating; it are manufactured in embryonic eggs or cell cultures and have gene expression-based or modern production techniques Contains messenger RNA, suitable for use in SARS-CoV-2 vaccines.
they may be Live virus or attenuated vaccineadministered intranasally; or developed with killed virus, which can be whole or segmented.
The flu vaccine confers immunity for no more than 8 or 9 monthslasts a winter and an autumn, that’s why You must be revaccinated every year.