This is the first article in a three-part series exploring the impact of the Laos-China Railway, a major project under China’s Belt and Road Initiative that connects cities across Laos and southwest ...

The COVID-19 virus can persist in the blood and tissue of patients for more than a year after the acute phase of the illness has ended, according to new research from UC San Francisco that offers ...

The Covid-19 pandemic has been perceived mainly as a dangerous acute outbreak of infection that killed more than a million people in the United States and 7 million worldwide. 1,2 However, in the ...

Ziyad Al-Aly is chief of research and development at VA St. Louis Health Care System and a clinical epidemiologist at Washington University in St. Louis. Since 2020, the condition known as long ...

Since May, highly contagious "FLiRT" coronavirus variants – a term for new mutations of Omicron – have been driving a rise in infections and emergency room trips. Virus levels at local wastewater ...

Four years after SARS-CoV2 sparked a devastating global pandemic, U.S. health officials now consider COVID-19 an endemic disease. "At this point, COVID-19 can be described as endemic throughout the ...