If they are immune, they can't spread the virus, dumbass.
If you are immune, then you don't have the virus in your system. How can you pass it to anyone else?
I'll attempt to educate those who know not of what they speak.
Mary Mallon - Wikipedia
Mary Mallon (September 23, 1869 – November 11, 1938), also known as
Typhoid Mary, was an Irish-born cook believed to have
infected 53 people with
typhoid fever, three of whom died, and the first person in the United States
identified as an asymptomatic carrier of the disease.