The Virus Variant Spreading in Britain May Make Vaccines Less Effective, Study Shows A fast-spreading coronavirus variant first observed in Britain has gained a worrisome mutation that could make it harder to control with vaccines, Public Health England reported on…

The Wealthy Are Getting More Vaccinations Even in Poorer Neighborhoods Officials acknowledge that the coveted shots are disproportionately going to white people and that planners’ efforts to course-correct are having limited effect. WASHINGTON — As soon as this city began…

Biden and Drug Makers Look to Speed Coronavirus Vaccine Deliveries Moderna will ask federal regulators to increase the amount of coronavirus vaccine it can put in each vial by as much as 50 percent, potentially bolstering availability quickly. WASHINGTON —…

States in the US are Pulling Back Vaccine Doses It did not take long for Keith Reed, a deputy health commissioner in Oklahoma, to spot a big logistical problem with the state’s vaccination rollout. Week after week, Oklahoma was allocating…

Burned by Low Reimbursements, Some Doctors Stop Testing for Covid Some insurers pay pediatricians less than the cost of the test itself, jeopardizing a tool to help control the pandemic. Dr. Robin Larabee was thrilled to start offering coronavirus testing…

In the Vaccine Scramble, Cancer Patients Are Left Behind Those with compromised immune systems are often advised to get the shots under medical supervision, but their cancer centers can’t always provide them. A doctor in Arizona says her cancer patients…

After a Rocky Start, Novavax Vaccine Could Be Here by Summer Even with two other vaccines authorized, Novavax is having no trouble recruiting volunteers for its U.S. trial. If all goes well, the U.S. could see 110 million doses in…

Vaccine News Gives Hope for Spring, if Enough People Get the Shots New data from several vaccine trials offer positive signs, but many public health experts say emerging variants mean the next few months will be a race against the…

AstraZeneca Shot Found to Be Protective Against Coronavirus Variant First Seen in U.K. The Covid-19 vaccine developed by AstraZeneca and the University of Oxford protected people against a new, more contagious coronavirus variant at similar levels to the protection it…

The Coronavirus Is a Master of Mixing Its Genome, Worrying Scientists New studies underscore how coronaviruses frequently mix their genetic components — which could contribute to the rise of dangerous variants. In recent weeks, scientists have sounded the alarm about…