The increasing number of reverse zoonotic transmission cases, in which pathogens are transmitted from humans to companion animals, has raised substantial concerns in both veterinary and public health ...

The XFG variant of the severe acute respiratory syndrome coronavirus 2 as continued to spread as the U.S. heads into peak Summer travel season. (Photo by I RYU/VCG via Getty Images) There’s another ...

Shortly after its first outbreak in Wuhan, the SARS CoV-2 spread worldwide. This study determined SARS CoV-2 seroprevalence and compared anti-RBD IgG titre distributions among seropositive samples ...

The SARS-CoV-2 variant BA.3.2 spread slowly before being detected in at least 23 countries in five continents by February. The prevalence of BA.3.2 was 0.55% among 5,238 U.S. samples collected from ...

During the first few years of the COVID-19 pandemic, the virus SARS-CoV-2 was detected in an increasing number of non-human animal species. This included many wild animal species as well as domestic ...

The World Health Organization and the Centers for Disease Control and Prevention have both designated beta as a “variant of ...

BA.3.2 spread internationally after first being identified in South Africa in November 2024, with detections rising from September 2025 and reports from at least 23 countries by 11 February 2026. U.S.

A new study suggests people vaccinated against COVID-19 can still easily spread the delta variant among households just as likely as people who are unvaccinated. The United Kingdom-based study was ...