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Johns Hopkins experts in global public health, infectious disease, and emergency preparedness have been at the forefront of the international response to COVID-19.
- Coronavirus Information
Johns Hopkins University has recently changed its COVID-19...
- JHU Coronavirus Resources
The Johns Hopkins Coronavirus Resource Center established a...
- Tracking
New Cases. Explore Global Case Trends. Track daily reported...
- Coronavirus Information
- How Does The Coronavirus Spread?
- How Did The Coronavirus Start?
- What Is The Incubation Period For Covid-19?
As of now, researchers know that the coronavirus is spread through droplets and virus particles released into the air when an infected person breathes, talks, laughs, sings, coughs or sneezes. Larger droplets may fall to the ground in a few seconds, but tiny infectious particles can linger in the air and accumulate in indoor places, especially wher...
The first case of COVID-19 was reported Dec. 1, 2019, and the cause was a then-new coronavirus later named SARS-CoV-2. SARS-CoV-2 may have originated in an animal and changed (mutated) so it could cause illness in humans. In the past, several infectious disease outbreaks have been traced to viruses originating in birds, pigs, bats and other animals...
Symptoms show up in people within two to 14 days of exposure to the virus. A person infected with the coronavirus is contagious to others for up to two days before symptoms appear, and they remain contagious to others for 10 to 20 days, depending upon their immune system and the severity of their illness.
Coronavirus (COVID-19) Information and Updates. What You Need to Know from Johns Hopkins Medicine. Johns Hopkins Medicine continues to follow the highest level of safety precautions as we care for our patients and work with our communities during the coronavirus pandemic.
The CDC recommends everyone 6 months and older get an updated COVID-19 vaccine to protect against the potentially serious outcomes of COVID-19 illness this fall and winter. The updated COVID vaccines for the fall/winter 2023-24 season are based on a variant called XBB.1.5. They are the only COVID vaccines that are available this season.
