Video: When do the infected become infectious?

The danger posed by a person infected with COVID-19 doesn’t begin the exact moment a few virus particles enter their system, so when do they start to be a health risk to those around them? Penn State Professor Nita Bharti talks about incubation periods, latency periods, and what they mean…

Video: How do coronavirus tests work?

How do coronavirus tests work? Testing capacity is a major factor in the effectiveness of the public health response to COVID-19, and there’s a lot of specialized technical expertise that goes into producing an accurate viral test. Penn State researcher Nita Bharti talks through the science behind testing, and why…

Do people become more selfless as they age?

Looking for something to binge-watch while you’re hunkering down at home? Consider checking out the popular TV show “The Good Place.” Over four recently concluded seasons, the series follows the adventures and mishaps of four utterly self-centered characters on their quest to become decent and selfless human beings. The deeper…

How do you become infected with the coronavirus?

The new coronavirus has traveled unseen paths from Wuhan, China, to virtually all corners of the globe. Evidence of its movements abound, from the proliferation of people wearing face masks to the sudden absence of toilet paper on store shelves. How did a virus that didn’t even exist just a…