An FDA-approved vaccine for smallpox and mpox is effective but causes side effects. The other requires multiple doses. An experimental single-dose vaccine uses the horsepox virus to harness the ...

Second, it takes longer to roll up your sleeve than it does to get the vaccine itself. Which sleeve should you be rolling up ...

In August, the Food and Drug Administration authorized updated vaccines against COVID-19. Here's what to know about the three ...

Both are given as an injection into a large muscle in a 0.5 milliliter (mL) dose. The vaccine either comes in a single-use vial or as a prefilled syringe. The shot is preferentially given in the ...

Antibiotics that commonly cause allergic reactions, such as penicillin, aren’t used by vaccine manufacturers. A small amount of thimerosal is added to multi-dose vials of the flu vaccine to prevent ...

These groups of people should receive both the initial dose – if they are not vaccinated – and additional doses of the vaccine, as they will benefit most from increased protection with ...

Most people, including those who have not previously been vaccinated, are eligible for a single dose of an updated vaccine, two months or more after a previous COVID-19 vaccination. Children under ...

Immunocompromised people and those who are age 65 or older should get a second dose of the 2024-2025 COVID-19 vaccine, according to the latest recommendations from the Centers for Disease Control ...

Six months after their first shot, people 65 and older and those who are immunocompromised should receive a second dose of the vaccines that rolled out this fall, according to new guidance ...

recommendation for people 65 years and older and those who are moderately or severely immunocompromised to receive a second dose of 2024-2025 COVID-19 vaccine six months after their first dose. These ...

Why not take another dose?” The new recommendation also provides clarity to healthcare providers on how many COVID vaccine doses their patients need and makes it easier for people with ...