The New York Times has made a free e-book with answers your coronavirus questions. It features more than two dozen chapters on how you can reduce your risk, what you can do to protect others, what scientists have learned, what to do if you’re worried about the stock market and more. You can download it on Apple Books and elsewhere. Below is an excerpt.

With the spread of the coronavirus comes another ailment: anxiety about every single symptom. Is your nose feeling itchy because you’re trying not to touch your face, because you picked up the flu — or is it, just maybe, the coronavirus?

With the start of spring, allergies may be triggering symptoms that can make it difficult to determine what your body is trying to fight off. Dr. Amesh Adalja, an infectious disease specialist at the Johns Hopkins Center for Health Security, helps explain the subtle differences between signs of allergies or infection with the flu or the coronavirus.

What are your symptoms?

First, consider the time of year. Allergies and influenza tend to be seasonal. If you have a runny nose in the spring and this happens every year, allergies are the likeliest culprit. If it’s winter and flu is raging in your community, then that’s the probable explanation. The flu is far more widespread than the coronavirus.