There are three COVID-19 vaccines approved for use in the U.S. The Pfizer, Moderna, and Johnson & Johnson vaccines are all highly effective in protecting you from the virus that causes COVID-19.

The Pfizer vaccine received full FDA approval on Aug. 23 and is no longer under emergency use authorization (EUA). It will now be marketed under the name Comirnaty.

Two other vaccines, from Novavax from AstraZeneca, are not available in the U.S.

Vaccines continue to lower your risk for severe disease, hospitalization, and death, even against the widespread Delta variant of COVID-19.

But each is slightly different. Compare them below. If you’re still not sure which vaccine is best for you, talk to your doctor.

See the chart

News

Green Method to Make Nanoparticles and Ultrafine Powder

A novel freeze-dissolving approach has been devised that offers greater efficiency and sustainability compared to the classic freeze-drying process to make superfine powder or nanoparticles.​​​​​​​ In the research published in the journal ACS Sustainable Chemistry & Engineering, sphere-shaped [...]

Could gold nanoparticles help treat cancer?

Gold nanoparticles are minuscule particles made of gold. From drug and gene delivery to photothermal and photodynamic therapies to screening and diagnostic tests to radiation therapy, X-ray imaging and CT scans, these small particles [...]