Research from Johns Hopkins University provides further evidence vaccines can provide some cross-protection against covid19. Patients who received the BCG vaccine had cross-protection against covid19; and the MMR and polio vaccines have also been shown to provide some cross-protection. The vaccination status of seriously ill covid19 patients, patients who contracted covid19 and did not become seriously ill, and patients who did not contract covid19, is important in understanding covid19. The vaccination status of pediatric patients too young for the…..
Antibodies detected in blood, bodily fluids, and tissue include IgA, IgG, and IgM. IgA and IgM are a response to acute infection. IgG antibodies take at least ten days to form and thereafter provide immunity against bacterial and viral infection. Saliva PCR testing for covid19 detects the presence of the covid19 spike protein, and not the type of antibodies present. Saliva testing for the type of antibodies can be done, and would reveal if the patient has an active covid19…..