They followed over 50000 of their employees for a period of 5 months, more than 1300 of whom had documented cases of Covid.
Their conclusion: "Not a single incidence of...infection was observed in previously infected participant with or without vaccination".
They indicated that the time length of natural immunity, like that of vaccinated immunity, is not known.
I have seen no indication that the period of natural immunity will be shorter than that of vaccinated immunity....I believe the opposite is more likely true.
Their conclusion: "Not a single incidence of...infection was observed in previously infected participant with or without vaccination".
They indicated that the time length of natural immunity, like that of vaccinated immunity, is not known.
I have seen no indication that the period of natural immunity will be shorter than that of vaccinated immunity....I believe the opposite is more likely true.