The new CDC report found that the new variant has spread to 25 U.S. states and 23 countries worldwide.
There's no evidence the covid-19 vaccines cause cancer.
The president will never take responsibility for his failures in 2020.
A low-cost, effective vaccine authorized for use in India this week could soon be shared around the world.
Pfizer's covid-19 vaccine will be the highest revenue drug in history by the end of 2021.
The Phase I trial will involve 40 people in the UK and is expected to run for a year. The team previously created a successful vaccine against the coronavirus.
The incoherent arguments of covid-19 anti-vaxxers mirror the climate denial movement.
Researchers found that even people with severe allergic reactions tolerated the second dose with little to no problem.
Federal health officials are reviewing whether a third jab may be necessary for some Americans as case numbers spike.
The research on whether people given the Johnson & Johnson vaccine need a booster shot to beat Delta isn't as clear as recent headlines suggest.
The Republican often spreads misinformation about everything from vaccines to the Jan. 6 Capitol riots.
The announcement came as Australia's covid-19 crisis gets worse thanks to low vaccination rates.
Around 100 cases of Guillain-Barré syndrome have been linked to the vaccine, but experts say its benefits still outweigh the rare risk.
Initial data has shown a third shot can greatly increase immune protection against the virus and its variants.
Several companies, including Moderna, have recently announced the start of clinical trials for the seasonal flu using mRNA vaccines.
Health officials claim the Pfizer vax was only 64% effective at preventing infection from Delta but was still highly effective at preventing serious illness.
The study, based on misrepresented safety data, argued that vaccines would kill two people for every three lives they saved.
When vaccinated people rarely caught the viral illness, they spent fewer days sick and in bed, the research found.
Evidence suggests that covid-19, Delta variant or not, remains a much greater danger for people with no past exposure to the virus than for those vaccinated.
Immunity remains robust in most vaccinated or previously infected people, but some with weaker immune systems may benefit from an extra dose.
