The Virus Trackers

The Internet has been teeming with theories about the origin of the coronavirus. Scientists have been saying for more than three months that it most likely originated in a species of bat found in the south of China, and then managed to somehow jump into people. But alternative ex ...  Show more

Covid-19 has sparked an unprecedented mobilization of researchers looking to create a drug that can stem the spread of the virus. Globally, drug developers are working on as many as 100 experimental vaccines. But as nations rush to ease lockdowns and restart economies, some count ...  Show more

Several vaccine companies have announced promising early evidence that their vaccines are effective at preventing symptoms of a coronavirus infection. So what comes next? CNN Chief Medical Correspondent Dr. Sanjay Gupta talks to vaccine creator and virology and immunology expert, ...  Show more

Long Covid can ruin lives, and scientists are striving to understand the condition and beginning to get some early clues about possible treatments. While there are still more questions than answers, though, many have turned online for help. But could what they find there sometime ...  Show more

Earlier this spring, doctors around the country began to worry that fear of Covid-19 was keeping their patients away. Now, we’re starting to see the consequences of that. Today, CNN’s Chief Medical Correspondent Dr. Sanjay Gupta talks to Dr. Michelle Kittleson, a cardiologist in ...  Show more

Everybody hopes that the new super-charged Omicron variant of coronavirus will be less severe, but even if it is, it’s spreading so fast and infecting so many people, health services around the world could still buckle under the strain.Two years into the pandemic, Claudia Hammond ...  Show more