COVID-19 vaccines using mRNA technology do not affect fertility outcomes during in-vitro fertilization (IVF), researchers found. Other new findings suggest the bacteria living in the small intestine may contribute to the risk for long COVID after infection with SARS-CoV-2.

Dr. Anthony Fauci, director of the National Institute of Allergy and Infectious Diseases and White House chief medical advisor, said they expect the U.S. Food and Drug Administration will authorize the Pfizer-BioNTech vaccine for children under the age of 5 years in the next month.

After a five-day quarantine, about a third of people infected with SARS-CoV-2 might still be infectious, according to new data. In other news, according to research published in the Journal of Primary Care & Community Health, e-cigarette users infected with the coronavirus may be more likely than infected non-vapers to experience COVID-19 symptoms

A new study from a team in California examined the differences between the sexes in the long-hauler response to SARS-CoV-2 infection.

Cyrus Biotechnology announced that the Seattle-based biotechnology firm’s pre-clinical stage COVID therapeutic lead molecule, ACE2.v2.4 strongly binds the spike protein of SARS-CoV-2 variant of concern (VOC) omicron.

Pfizer, Moderna, and AstraZeneca have been running “dress rehearsals” by adapting their current formulations of Covid-19 vaccines to match present known SARS-CoV-2 variants.

Codagenix Inc. announced favorable safety and immunogenicity data from a Phase I dose-escalation trial of the company’s single-dose intranasal COVI-VAC vaccine, and London-based pHOXBIO Ltd. reported results from a pivotal phase II/III study of the novel prophylactic nasal spray pHOXWELL.

What is the key to a robust immunity against SARS-CoV-2? According to a study recently published in The New England Journal of Medicine, it could be a previous SARS infection—more specifically, the one that spread across 29 countries between 2002 and 2004—plus vaccination. 

As cases of the Delta variant continue to raise concerns across the United States, a new variant reaches a warning level for the World Health Organization.

In a survey released by oncology data leader COTA, half of the respondents pointed to “Operation Warp Speed” for the Covid-19 pandemic as the seed of their belief that cancer treatments can and should be moving forward faster.