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“The flu virus, like all viruses, is not alive, so it can’t be killed,” says infectious disease expert Amesh A. Adalja, M.D., senior scholar at the Johns Hopkins Center for Health Security ...
Persons receiving the live attenuated influenza vaccine may shed small amounts of the vaccine virus during the first week. People coming in contact with the vaccinated person are not considered to be at risk, unless their immune systems are severely weakened (for example, bone marrow transplant recipients) and possible recombination with other ...
This work was based on experiments in mice that suggested that type I interferons could enhance the effectiveness of influenza vaccines in mice. [10] However, a clinical trial in 2008 found that oral dosing of elderly patients with interferon-alpha actually reduced their immune response to an influenza vaccine. [11]
A high-dose vaccine (Fluzone High-Dose) four times the strength of standard flu vaccine was approved by the FDA in 2009. [22] [23] [24] This vaccine is intended for people 65 and over, who typically have weakened immune response due to normal aging. The vaccine produces a greater immune response than standard vaccine.
The flu shot and COVID-19 shot each come with their own potential side effects. Here’s what you may experience in terms of side effects when you get the flu shot: Soreness, redness, and swelling ...
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Partial exceptions to these rules occur for doxycycline and minocycline, which may be taken with food (though not iron, antacids, or calcium supplements). Minocycline can be taken with dairy products because it does not chelate calcium as readily, although dairy products do decrease absorption of minocycline slightly.
The exact efficacy varies by year, but data from the Centers for Disease Control and Prevention (CDC) show that for all flu vaccines (meaning nasal and the shot) the 2023-2024 flu vaccine was 42% ...