In line with growing concerns that certain Covid-19 vaccines are causing unusual blood clotting problems, a group of scientists from the U.K. conducted a massive study on the link between vaccinations and dropping platelet counts and found that the problem lies more on the virus itself than on the medications. 

The number of coronavirus patients in U.S. hospitals breached 100,000, the highest level in eight months, according to the Department of Health and Human Services, as a resurgence of Covid-19 spurred by the highly contagious Delta variant strains the nation’s health care system.

BioSpace takes a look at some of the top stories from day one of the Annual Biomarkers for Alzheimer’s Disease Summit held August 25-26, 2021.

Pfizer Inc. on Aug. 25 said a booster dose of the company’s two-shot Covid-19 vaccine spurs a more than threefold increase in antibodies against the coronavirus, as the drugmaker seeks U.S. regulatory approval for a third injection.

Early data from a Phase III study of Brii Biosciences’ monoclonal antibody combination therapy for Covid-19 is showing significant promise.

A new study may help explain why mRNA vaccines by Pfizer/BioNTech and Moderna are more effective at preventing hospitalizations and deaths than they are at preventing infection. In another study, preliminary data suggests certain cancer drugs may help protect patients with malignancies from being infected with the new coronavirus.

Amneal Pharmaceuticals Inc announced positive topline results from the pivotal Phase 3 RISE-PD clinical trial that evaluated the novel formulation, IPX-203, in patients with Parkinson’s disease (PD) who have motor fluctuations.

More studies into vaccinated populations show that although antibody responses drop months after vaccination against Covid-19, they still dramatically protect against severe disease and hospitalization. Studies are also continuing on the value and efficacy of booster shots, particularly against the Delta variant.

A booster dose of Johnson & Johnson’s Covid-19 vaccine sharply increased levels of antibodies against the coronavirus, according to interim data from two small, early-stage trials, the company said in a press release on Aug. 25.

The Centers for Disease Control and Prevention (CDC) released a report showing that unvaccinated people are 29 times more likely to be hospitalized with Covid-19 than those who are fully vaccinated against the disease.