Smokers' lungs may contain more gateways for the virus to enter and trigger infection.
Speech-related spread could help explain why people can spread the virus before they develop a cough.
No diagnostic test is 100% accurate, but experts have still expressed concern at the accuracy of the COVID-19 tests.
Aerosols likely pose the greatest danger in health care settings, but may also spread in some everyday scenarios.
It's theoretically possible that coronavirus could infect the region of the brain responsible for smell.
A new study rests on several big assumptions, but highlights the desperate need for antibody testing.
The answer depends on when scientists can access reliable data, and when most members of the public adhere to the measure, experts say.
President Trump boasted the drug's promise, but it must still be put through rigorous clinical trials.
The dog did not develop symptoms of illness while infected, and had been allowed to return home after finally testing negative for the virus.
The vaccine was fast-tracked to human trials, but it will still be some time before it's ready for public use.
Humans have been fighting viruses throughout history. Here are the 12 viruses that are the world's worst killers, based on their mortality rates, or the sheer numbers of people they have killed.
An outbreak of COVID-19 in the U.S. seems inevitable. How will local governments and health care facilities respond?