Understanding which cells within a tumor will go on to form metastases remains one of the major challenges in cancer research ...

Penn Medicine researchers will present advances in CAR T cell therapy, cancer interception, prevention, and more at the 2026 AACR Annual Meeting.

"Cicada" is trending, but not because it's the season for the noisy insects to appear. The Centers for Disease Control and Prevention and the World Health Organization are both monitoring a COVID-19 ...

A Covid-19 variant has returned with a vengeance. The BA.3.2 version, nicknamed Cicada, has now been found in over 20 states. The virus is highly mutated, making it difficult for vaccines to recognize ...

A variant of COVID-19 called BA.3.2, which has circulated under the radar since late 2024, is now spreading quickly across the United States. There’s no sign so far that BA.3.2, nicknamed Cicada, is ...

A new variant of COVID-19 is spreading across the U.S., health officials say. At least 23 countries have reported the SARS-CoV-2 BA.3.2 variant as of Feb. 11, according to a study published last week ...

BA.3.2, a new COVID-19 variant, has been detected in wastewater samples from 25 states in the U.S. The new variant has mutations in the virus that could evade immunity from a previous infection or ...

A new paper in Genome Biology and Evolution, indicates that while the COVID-19 virus has developed rapidly since 2019, it has done so within limited genetic channels. These genetic limits have ...

A major real-world study challenges persistent safety concerns, showing no increased risk of sudden cardiac death after COVID-19 vaccination while highlighting how misleading associations can arise in ...

A study published Wednesday shows that the early U.S. death toll during the COVID-19 pandemic was higher than previously recorded. The journal Science Advances found that more than 155,000 ...

The Covid-19 pandemic’s early death toll was much higher than the official US count, according to a new study that spotlights dramatic disparities in the uncounted deaths. About 840,000 Covid-19 ...

Six years after COVID-19 first reached New Zealand, the country is experiencing its ninth wave of infections. But the virus we are living with today behaves very differently from the one that caused ...