The FDA is developing guidance for manufacturers of diagnostics, therapeutics, and vaccines to aid their response emerging severe acute respiratory syndrome coronavirus 2 variants, Acting Commissioner Janet Woodcock, MD, said in a statement.

SARS-CoV-2 is a member of the family coronaviruses. The first cases were recorded in Wuhan, China, between December 2019 and January 2020. COVID-19 new challenge modern dentistry. New guidelines are required dental clinics to avoid contagion caused by cross-infections. Precautionary measures should be applied control clinical practice. Several authors have highlighted importance tele- triage an...

Severe acute respiratory syndrome (SARS) is a serious and fatal infectious disease caused by SARS coronavirus (SARS-Cov), a novel human coronavirus. SARS-Cov infection stimulates cytokines (e.g., IL-10, IFN-gamma, IL-1, etc.) expression dramatically, and T lymphocytes and their subsets CD4(+) and CD8(+) T cells are decreased after onset of the disease. SARS-specific IgG antibody is generated in...

Viruses account for the majority of the acute respiratory tract infections (ARIs) globally with a mortality exceeding 4 million deaths per year. The most commonly encountered viruses, in order of frequency, include influenza, respiratory syncytial virus, parainfluenza and adenovirus. Current evidence suggests that the major mode of transmission of ARls is through large droplets, but transmissio...