Hopefully, the smoke is now just a bad memory and we can start preparing for the 2020 flu season — and as with everything else this year, it will be different. Because of COVID-19, it will be even more important to get your seasonal flu shot this year. It could help avoid a nightmare scenario: Hospitals full treating both those suffering from severe effects of the flu and a second wave of COVID-19 patients.

In past years, we only needed to know the differences between the common cold and the more serious seasonal flu, which kills tens of thousands of people each year in the U.S. But this year there is COVID-19, which has many similarities with the seasonal flu. Both are contagious respiratory illnesses, (but caused by different viruses) and both are spread between people who are in close contact (within about six feet) and mainly by droplets made when people cough, sneeze or talk.