The nasal spray version of the flu vaccine contains live but weakened form of the virus. Researchers think there’s a good chance this could help boost the body’s immunity and improve its ability to fight off pathogens such as the coronavirus.

A patient receives a nasal spray vaccine during a clinic held by Montgomery County Health and Human Services for the H1N1 virus on October 9, 2009 at the Dennis Avenue County Health Center in Silver Spring, Maryland. AFP PHOTO / Tim Sloan (Photo credit should read TIM SLOAN/AFP via Getty Images)