Fauci says he’s optimistic about coronavirus vaccine protection, but concerned about how long that protection will last.
“If you look at the duration of protection when you recover from one of the several benign coronaviruses that cause the common cold, the durability of infection is only measured in a year or less as opposed to the other infections where you can get 15 to 20 years of protection,” he said.
He is saying no vaccine would work for more than a year.
Dr. Greg Poland, director and founder of Mayo Clinic Vaccine Research Group, said natural immunity from coronaviruses SARS-CoV-1 and MERS can be detected two to three years after recovering from infection. However, immunity for seasonal coronaviruses can last as little as 80 days to several years in some people.