What to know about West Nile virus, symptoms after Dr. Anthony Fauci reveals illness

As Dr. Anthony Fauci recovers from West Nile virus, questions are circling about the illness, including how it's contracted, its symptoms and preventing it. 

Fauci, the former director of the National Institute of Allergy and Infectious Diseases who headed up the federal response to the coronavirus pandemic, told CBS News on Saturday that he is expected to make a full recovery at home after being hospitalized for days nearly two weeks prior. 

CBS News chief medical correspondent Dr. Jon LaPook joined "CBS Mornings" on Monday to share details on the disease. Here's what to know: