How do I get the immunity of flu?

Influenza immunity or biological resistance to the influenza virus can be obtained in several different ways such as vaccination or exposure to the past virus. The influenza virus is a contagious respiratory infection that can cause serious respiratory symptoms and can lead to complications that may be fatal. It is difficult to produce effective vaccines that cause influenza immunity, because the virus changes rapidly through the almost constant series of mutations. The annual influenza outbreaks occur around the world and cause hundreds of thousands of people every year. New, especially deadly tribes of influenza virus, which are generally obtained from different animals, such as pigs or birds, can lead to even greater death.

Partial immunity of influenza can be easily obtained by exposing the influenza virus. If the individual catches the virus for one year, it is significantly less likely to catch it in the next year because its system has developed a certain level of resistance virus. However, this only applies because the influenza viruses do not tend to deraSticky mutate in the area of ​​the year. If a new virus strain appears, an individual exposed to the previous strain of the virus is unlikely to have the same level of immunity flu. Tribes similar to strains that have been captured in previous years may still cause infection, especially if an infected individual is already in poor health.

Every year, scientists produce vaccines that offer flu immunity to those who need it. There are two commonly used types of vaccines. In one they are deactivated, harmless influenza substances are injected with a needle into the arm. The second vaccine, known as a vaccine against live weakened influenza (LIV), is made of live but weakened flu viruses and is served as a nasal spray. Both vaccines can lead to the immunity of influenza, which protects the virus from the previous majoriant of the virus in a given year.

While the immunity of influenza that is the result of vaccination, every year saves many lives, vaccines canKé cause harmful or even fatal side effects and complications. This is especially true for people in poor health. Influenza viruses in the nasal spray, although too weak to overcome a healthy immune system, could still infect and damage individuals with a compromised immune system. Side effects of vaccines may include fever, pain around the area where the shot was served and symptoms similar to flu. Healthy people generally overcome these side effects quickly and some may not experience them at all.