Covid, only one dose of vaccine is enough for the recovered. I study

Hybrid immunity: the study

The research of the Clalit Health Services noted that there is no substantial difference in the protection against the Sars-CoV2 coronavirus afforded by two doses or a single dose of Pfizer in those who had already been sick with Covid. According to the study’s lead author, Ronen Arbel, the vaccine provides an extra layer of protection in former patients and extends the duration of immunity, but “if someone has already had the infection, it is as if they had a first dose of the vaccine. At that point you have to get vaccinated. but only once “.

The virologist

Shane Crotty, professor and virologist at the Center for Infectious Diseases and Vaccines at the La Jolla Institute for Immunology, noted of the Israeli study that it would be “reasonable” to adopt new measures so that people who have already been affected by Covid only receive one. vaccine dose.

When to get vaccinated after infection

At this point it may be useful to relate the Israeli study to the Italian situation, linked to the super green pass (valid for 6 months), the reinforced Green Certification that allows them to carry out the same activities reserved for vaccinated people.

The recommendation of the Higher Institute of Health is to proceed with the anti-Sars-coV2 vaccination afterwards 4 months from healing, not exceeding 6 months, to keep the immune response high. What will be administered will in fact be a second dose, therefore in a single administration. To obtain the Super Green Pass indefinitely, it will be necessary to carry out a booster dose, corresponding to the third dose.