Vaccination Trends | Respiratory Illnesses | CDC
Mar 7, 2025 · COVID 19-vaccines are effective at protecting people from getting seriously ill, being hospitalized, and dying. Vaccination remains the safest strategy for avoiding hospitalizations, long-term health outcomes, and death. CDC recommends that all people aged 6 months and older stay up to date on COVID-19 vaccines.
Vaccine Types - HHS.gov
Dec 22, 2022 · Viral vector vaccines use a modified version of a different virus as a vector to deliver protection. Several different viruses have been used as vectors, including influenza, vesicular stomatitis virus (VSV), measles virus, and adenovirus, which causes the common cold.
Live Virus Vaccines: What to Know - Verywell Health
Nov 5, 2024 · Live virus vaccines contain an attenuated (weakened) form of a virus that causes disease. Examples include the MMR, chickenpox, and smallpox vaccine. Live virus vaccines are different from inactivated vaccines in which the pathogen has been killed.
Explaining How Vaccines Work | Vaccines & Immunizations | CDC
Aug 10, 2024 · Vaccines help the body learn how to defend itself from disease without the dangers of a full-blown infection. Everyone should get all recommended vaccines at the recommended times. There are different types of COVID-19 vaccines. Learn how they work.
COVID-19 Vaccine: What You Need to Know - Johns Hopkins Medicine
What is the COVID-19 vaccine? The COVID-19 vaccine lessens the severity of COVID-19 by teaching the immune system to recognize and fight the virus that causes the disease. The 2024–25 COVID-19 vaccine is updated to better protect against variants that …
COVID-19 Vaccines | COVID-19 | CDC - Centers for Disease …
Sep 10, 2024 · Learn about COVID-19 vaccine recommendations, what to expect when getting a vaccine, and vaccine effectiveness. People who are up to date with their COVID-19 vaccine have lower risk of severe illness. Learn how to schedule and …
Vaccines and immunization: What is vaccination?
Apr 23, 2024 · Vaccination is a simple, safe, and effective way of protecting you against harmful diseases, before you come into contact with them. It uses your body’s natural defenses to build resistance to specific infections and makes your immune system stronger.
Different types of COVID-19 vaccines: How they work
Jan 30, 2025 · COVID-19 vaccines lower your risk of getting sick, seriously ill or dying from the disease. But how do the different types of COVID-19 vaccines work? Each COVID-19 vaccine causes the immune system to create proteins called antibodies. These proteins fight infection with the COVID-19 virus.
Get the facts about COVID-19 vaccines - Mayo Clinic
Catching the virus that causes COVID-19 or getting a COVID-19 vaccination gives you protection, also called immunity, from the virus. But over time, that protection seems to fade. The COVID-19 vaccine can boost your body's protection. Also, the virus …
Influenza Vaccine Composition for the 2025-2026 U.S. Influenza …
4 days ago · Today, the FDA made recommendations to vaccine manufacturers for the virus strains to be used in the trivalent (three strain) flu vaccines for the 2025-2026 U.S. flu season following a thorough ...