World Health Organization: We do not have a complete answer for coronavirus transmission for the second time

Kerkhove reminded that those who have had SARS Coronavirus in the past have developed antibodies against the disease, reminding them that they have been immune to the virus for 12 months or more.

Stating that the duration of immunity is shorter in normal influenza, Kerkhove, and Kerkhove, who answered the question, said, "We do not have a complete answer. However, this is an active research area and I must say that an active joint research is continuing all over the world."