In the United States, the flu season is from October to May. Therefore, physicians often recommend that everyone, especially those most at risk for the flu, get the vaccine as early as October. As you know, the flu is a very contagious disease. These days, getting the flu vaccine is even more important due to the prevalence of COVID-19.
If you live in Las Vegas, you can go to the Southern Nevada Occupational Health Center to get the flu vaccine. Our specialists at this center will give you the most compatible type of vaccine based on your age, health condition, and history of allergies.
As you know, different flu vaccines are available in the pharmaceutical market. What is the difference between types of flu shots? Do they have an advantage over each other? Which vaccine should be given? Can people who are allergic to eggs get the vaccine? Join us to answer these questions in the next sections.
Types of Flu Shots
Influenza vaccines produce antibodies in the body within two weeks. These antibodies protect you from getting infected. Fortunately, there is more than one flu shot available in the United States, and no preference is defined for any influenza vaccine over another.
Influenza vaccines or flu vaccines fall into two general categories:
- Trivalent flu vaccines
- Quadrivalent flu vaccines
Types of Flu Shots: Trivalent
These vaccines protect you against three strains of the flu virus:
- influenza A (H1N1)
- influenza A (H3N2)
- an influenza B virus
These vaccines contain compounds that trigger a stronger immune response and are usually recommended for people 65 and older.
Types of Flu Shots: Quadrivalent
This vaccine protects you against four different flu viruses, including two influenza A viruses and two influenza B viruses. Influenza vaccines were produced as trivalent vaccines for many years, and their protection was effective against only three types of viruses. But quadrivalent vaccines provide broader protection against circulating flu viruses.
Quadrivalent vaccines do not cause the flu illness because they contain killed or attenuated viruses or are made using recombinant technology. Therefore, it can be said that these vaccines, like all influenza vaccines, are safe and are monitored annually in terms of safety and effectiveness.
- The standard-dose flu shot is produced using a virus grown in eggs and is approved for people six months and older.
- The quadrivalent cell-based influenza shot vaccine contains a virus grown in cell culture, which can only be given to people 4 years of age and older. In other words, these vaccines are considered egg-free.
- Recombinant quadrivalent influenza shot is an egg-free vaccine approved for people 18 years of age and older.
- Quadrivalent flu shot using an adjuvant also produces a stronger immune response and is prescribed for people 65 and older.
- Quadrivalent high-dose influenza vaccine is also for people over 65 years.
- Live attenuated influenza vaccine is used intranasally, which is approved for people aged 2 to 49 years. The vaccine should not be used in pregnant women, people with weakened immune systems, and some other groups.