Orange County, CA

Early symptoms reported by some people include fatigue, headache, sore throat, or fever. Others experience a loss of smell or taste. COVID-19 may cause mild symptoms at first, but then become more...

Since the incubation period can be up to 14 days, CDC recommends screening at least once a week. The time from exposure to onset of symptoms (known as the incubation period) is thought to be two to...

Recent research evaluated the survival of the COVID-19 virus on different surfaces and reported that the virus can remain viable for up to 72 hours in plastic and stainless steel, up to four hours...

A wide range of symptoms have been reported in people with COVID-19, ranging from mild symptoms to serious illnesses. Symptoms may appear 2 to 14 days after exposure to the virus. The symptoms of...

Loss or altered sense of taste, dry mouth and sores are common among patients with COVID-19 and those symptoms can last long after others disappear, Brazilian researchers report. Researchers found...

The virus spreads by respiratory droplets that are released when a person infected with the virus coughs, sneezes, or talks. These drops can be inhaled or dropped into the mouth or nose of a nearby...

It is possible for a person to get COVID-19 by touching a surface or object that has the virus and then touching their mouth, nose, or possibly eyes, but this is not thought to be the main way the...

The “Three C's” are a useful way to think about this. There have been many similar super-spreading events in the COVID-19 pandemic. A database by Gwenan Knight and colleagues at the London School of...

For both forms of transmission of COVID-19 disease, by close contact and by air, it is respiratory droplets containing the virus that spread the disease. Everyone produces respiratory droplets,...

However, among the 92 active participants in the study (all were fully vaccinated), 17 percent tested positive after five days, so the second component of the CDC and the BU, consistent guidelines...