President Joe Biden on May 5 threw his support behind waiving intellectual property rights for Covid-19 vaccines, bowing to mounting pressure from Democratic lawmakers and more than 100 other countries, but angering pharmaceutical companies. Biden voiced his support for a waiver – a sharp reversal of the previous U.S. position – in remarks to reporters, followed swiftly by a statement from his top trade negotiator, Katherine Tai, who backed negotiations at the World Trade Organization.

Pfizer reported first-quarter 2021 revenue of $14.6 billion, an impressive 42 percent operational growth. The company’s Covid-19 vaccine revenue accounted for $3.5 billion of the total.

The U.S. Food and Drug Administration is preparing to authorize Pfizer Inc. and German partner BioNTech SE’s Covid-19 vaccine for adolescents aged between 12 and 15 years by early next week, the New York Times reported on May 3, citing federal officials familiar with the regulatory agency’s plans.

India’s daily Covid-19 shots fell sharply from an all-time high reached in early April as domestic companies struggle to boost supplies and imports are limited, even as the country fights the world’s worst surge in infections. Pfizer said on May 3 the company was in discussions with the Indian government seeking an “expedited approval pathway” for its vaccine.

A single dose of Pfizer’s coronavirus vaccine may not generate a sufficient immune response to protect against dominant new variants, except in people who have already been infected with Covid-19, according to a UK study published on April 30.

BioNTech expects results by September from trials testing the Covid-19 vaccine developed with Pfizer in babies as young as 6 months old, German magazine Spiegel cited the company’s CEO as saying.

Pfizer is expanding the company’s presence in infectious diseases with the acquisition of San Diego-based Amplyx Pharmaceuticals and the lead antifungal compound Fosmanogepix (APX001).

Covid-19 vaccines deployed in England can cut transmission of the coronavirus in households by up to a half, data from Public Health England (PHE) showed on April 28, in addition to the protection the shots offer against symptomatic infection.

The U.S. Centers for Disease Control and Prevention (CDC) has not found a link between heart inflammation and Covid-19 vaccines, the agency’s Director Rochelle Walensky said on April 27.

The Covid-19 vaccine developed by Pfizer and BioNTech is effective at preventing symptomatic and severe disease in people with some chronic illnesses, like diabetes and heart disease, the biggest real-world study showed on April 22.