A team of researchers for the first time has found a correlation between the levels of bacteria and fungi in the gastrointestinal tract of children and the amount of common chemicals found in their home environment.

A study of nearly 2,000 Marine recruits who went through supervised quarantine before starting basic training revealed several instances of asymptomatic transmission of SARS-CoV-2, the virus that causes COVID-19, despite the quarantine measures.

Patients with cancer have multiple treatment options available to them today, but each has its drawbacks. Chemotherapy kills rapidly dividing cancer cells, but it also damages healthy cells in the body and often does not effectively prevent tumor metastasis or disease recurrence.

Pfizer said Monday that an early peek at the data on its coronavirus vaccine suggests the shots may be a surprisingly robust 90% effective at preventing COVID-19, putting the company on track to apply later this month for emergency-use approval from the Food and Drug Administration.

Coronavirus transmission from minks to humans does not necessarily mean the disease will become more dangerous, but scientists are on their guard in the wake of an astounding announcement from Denmark.