Vaccines
Latest about vaccines
![A pregnant women wearing a surgical mask receives a vaccine at the doctor's office](https://cdn.mos.cms.futurecdn.net/BE4HsNYv8AcYEEzo58XKa5-320-80.jpg)
COVID-19 vaccines are safe and effective in pregnancy, new study shows
By Nicoletta Lanese published
Protection also passes to the fetus through the placenta and to newborns through breast milk.
![two boys in face masks bump elbows while standing near a wall in school](https://cdn.mos.cms.futurecdn.net/Lf6Z8k7dbS5Z7GzzeGZ2pm-320-80.jpg)
Moderna starts COVID-19 vaccine trial in infants and young children
By Nicoletta Lanese published
The trial includes children in the U.S. and Canada.
![A newborn baby lies on a white blanket, looking up at an adult standing over him. The adult is brushing a strand of the baby's hair back](https://cdn.mos.cms.futurecdn.net/frNX3ZigDEFNShFJqvVbkT-320-80.jpg)
Can moms pass COVID-19 immunity to their newborns?
By Nicoletta Lanese published
A new study shows that antibodies can cross the placenta and could be protective to the baby.
![Illustration of three coronavirus particles](https://cdn.mos.cms.futurecdn.net/R67BJKhAkRgAfe8w7ZsmhY-320-80.jpg)
There's a new coronavirus variant in the UK. Here's what we know.
By Nicoletta Lanese published
Vaccines will likely work just as well against the variant.
![vials of clear liquid on table with syringe](https://cdn.mos.cms.futurecdn.net/QScaQn4H8Sn4WLH4egGQMk-320-80.jpg)
Chinese-made COVID-19 vaccine is 86% effective, early data suggest
By Nicoletta Lanese published
The United Arab Emirates has approved the vaccine based on this data.
![Dry ice pellets can be used to maintain the ultra-cold temperatures required for Pfizer/BioNTech’s COVID-19 vaccine. Shown here, those pellets are being manufactured at Capitol Carbonic, a dry ice factory, in Baltimore, Maryland, on Nov. 20, 2020](https://cdn.mos.cms.futurecdn.net/TmNUP8CuXtuKbwhjgfPnP7-320-80.jpg)
How COVID-19 vaccines will get from the factory to your local pharmacy
By Bahar Aliakbarian published
Here's how the Pfizer and Moderna COVID-19 vaccines will be distributed and kept safe from the factory to your local pharmacy.
![Dr. Anthony Fauci during a White House press briefing on Nov. 19, 2020.](https://cdn.mos.cms.futurecdn.net/dzjQaeCRN67XLrTJ3kRvPc-320-80.jpg)
Speed of COVID vaccine testing did not compromise safety, Fauci says
By Yasemin Saplakoglu published
This incredible speed in vaccine development is unprecedented, but the process is solid.
![People waiting in line and wearing face masks in Reading, PA on April 25, 2020.](https://cdn.mos.cms.futurecdn.net/bqrqU6NWo9WtKLKpECLEdT-320-80.jpg)
What is herd immunity?
By Joshua A. Krisch published
Scientists use herd immunity to describe the point at which a population is sufficiently immune to a disease to prevent its circulation.
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