Blood clots should be listed as a possible side effect of AstraZeneca’s vaccine, but its benefits still outweigh the risks, experts say.
Vaccinated 12- to 15-year-olds developed higher levels of coronavirus antibodies compared with vaccinated 16- to 25-year-olds from a previous trial.
The “xenobots” can swim, navigate tubes, move particles into piles and even heal themselves after injury, a new study reports.
The mRNA vaccines are about 90 percent effective at blocking coronavirus infection, which could lead to reduced transmission, real-world data suggest.
The redo dropped the overall efficacy of AstraZeneca’s vaccine from 79 percent to 76 percent. But a slight fluctuation is not unexpected, experts say.
Dimly lit nights increased risk of West Nile virus exposure in chickens. Artificial light proved a better predictor of risk than population or paving.
More vaccines still in the works are exploring a variety of approaches, including pills and electrical zaps.
The shot was 80 percent effective at preventing illness in people 65 and older and prevented severe disease and hospitalization.
Drugs that block a brain chemical called CGRP are helping some patients who suffer from migraine pain.
Multiple countries suspended use of AstraZeneca’s COVID-19 vaccine because of concerns about blood clots, but health authorities say the shot is safe.