Delta

A sign describes entry restrictions at a JLL office in the Aon Center in Chicago, Illinois, USA on Thursday, June 24, 2020.Christopher Dilts | Bloomberg | Getty ImagesWhen the reporting season started in earnest in mid-July, few companies…

A single dose of the Covid-19 vaccine manufactured by Johnson & Johnson is highly effective in preventing serious illness and death from the delta and beta variants of the coronavirus, data from a clinical study in South Africa…

A sign warning people to stay separated due to Covid-19 can be seen in Mevagissey, UK on July 29, 2021.Finnbarr Webster | Getty Images News | Getty ImagesMore than a year after the Covid-19 pandemic, the world is struggling with a highly…

Residents of the city of Wuhan in the Chinese province of Hubei are due to take nucleic acid tests for Covid-19 on August 3, 2021.STR | AFP | Getty ImagesChina is on the brink of resurgence in major cities from Beijing to Wuhan, and…

Many patients who are hospitalized have underlying health conditions like diabetes, obesity or high blood pressure, which are risk factors for serious illness, he said. However, some younger patients do not have any of these risk…

Most experts say they use a good quality medical mask such as an N95 or KF94 when flying. If you don't have one, double masking is recommended. For a vaccinated person, the risk of briefly removing a mask to eat or drink during a flight…

Dr. Scott Gottlieb told CNBC on Friday that he believes the coronavirus is significantly more widespread in the United States than official case numbers reflect as the highly contagious Delta variant is sweeping the nation."I wouldn't be…

This photo image shows a World Health Organization (WHO) logo on an Android phone.Avishek Das | Getty ImagesWorld Health Organization officials said they are still trying to understand why the Delta variant is more transmissible and…

Registered nurse Darryl Hana administers a dose of the Pfizer COVID-19 vaccine to a person at a three-day vaccination clinic at Providence Wilmington Wellness and Activity Center on July 29, 2021 in Wilmington, California.Mario Tama | Getty…

The Delta variant is much more contagious, is more likely to breach vaccine protection, and can cause more serious illness than any other known version of the virus, according to an internal presentation spread within the Centers for…