How will you know if you have the novel coronavirus that causes the COVID-19 disease? Here are the most common symptoms for adults, kids, vaccinated individuals and delta-variant infections.
A virus is defined as any of a various number of submicroscopic parasites that can infect any animal, plant or bacteria and often lead to very serious or even deadly diseases. A virus consists of a core of RNA or DNA, generally surrounded by a protein, lipid or glycoprotein coat, or some combination of the three. No virus can replicate without the help of a host cell, and though they can be spread, viruses lack the ability of self-reproduction and are not always considered to be living organisms in the regular sense.Some of the most common or best known viruses include the human immunodeficiency virus (HIV), which is the virus that causes AIDS, the herpes simplex virus, which causes cold sores, smallpox, multiple sclerosis, and the human papilloma virus, now believed to be a leading cause of cervical cancer in adult women. The common human cold is also caused by a virus.Since a great deal of mystery still surrounds the origins of most modern viruses, ways to cure these viruses and the diseases they cause are still in the very early stages of development.
The first case of human monkeypox in the U.S. in nearly 20 years has been confirmed in a U.S. resident who recently returned from traveling to Nigeria.
A researcher in Seattle has dug up deleted files from Google Cloud that reveal 13 partial genetic sequences for some of the earliest cases of COVID-19 in Wuhan.
No additional cases of human infection were identified, according to China's National Health Commission.
The influenza virus that caused the 1918 pandemic mutated into variants, much like the novel coronavirus has done in the current pandemic, century-old virus samples reveal.
Find out everything about adenoviruses, from what they are and what symptoms to watch out for to how adenoviruses are used in vaccines, such as those for COVID-19.
A new vaccine approach to HIV that stimulates a set of rare immune cells showed 97% success at targeting those cells in its first tests in humans.
The tool essentially creates a "watch list" of newly discovered animal viruses that pose the greatest threat to human health.
Hundreds of thousands of viruses can lurk in our guts — but how they impact our bodies is a mystery.
In 1872 the U.S. economy was growing as the young nation industrialized and expanded westward. Then in the autumn, a sudden shock paralyzed social and economic life.
A deadly virus that causes fevers, abdominal pain, vomiting, bleeding gums, skin rash and pain behind the eyes can now jump from one person to another.
Honey probably works about as well as or better than over-the-counter cough syrups. The bad news is, those don't work that well.
New Zealand, a country of about 4.8 million, has now gone 100 days without a single locally transmitted case of COVID-19.
The U.S. continues to break daily COVID-19 records, with 75,600 new cases just logged in a single day.
There's plenty of nonsense about the coronavirus online. Here are some of the biggest COVID-19 myths out there and the science to explain why they aren't true.