My husband elected to get the J&J shot after pressure from our doctor and has had nothing but problems since! Testing positive for antibody against the vaccine antigen target, such as the S protein, while testing negative for other antigens (e.g., N) suggests that they have produced vaccine-induced antibody. The current COVID-19 vaccines target the SARS-CoV-2 spike protein, so unless the antibody test is looking for antibodies to that protein, the test results will have no meaning. Seroconversion (antibodies become detectable in the blood) of IgG antibodies typically occurs around day seven to 14 after symptom onset and can often be detectable for six to eight months thereafter. Vaccinated individuals with both anti-S and anti-N antibodies may suggest vaccination and recent prior infection. Just adding my anecdotal story since more open and transparent information is always good. Interim Guidelines for COVID-19 Antibody Testing. It is not known to what extent persons re-infected with SARS-CoV-2 might transmit SARS-CoV-2 to others or whether the clinical spectrum differs from that of primary infection. The test may also detect a response to vaccination 2. Factors such as immunosuppression status and disease severity can affect the timing of antibody response, duration and levels of antibodies found in the blood. I can't believe they are making all these vaccines and not know what number antibody levels should be at for full protection. Note: Multiple Sclerosis News Today is strictly a news and information website about the disease. i dont understand what this means. You should perform an antibody test instead of an antigen test to check the effectiveness of the vaccine. The T-Detect COVID test uses PCR and next generation sequencing to detect the rearrangement of TCR-B. My husband and I had Covid in May 2021. I will continue to do what I can to remain healthy, workout, eat right, manage stress as best as possible. A large study in the United States of commercial laboratory results linked to medical claims data and electronic medical records found a 90% reduction in infection among persons with antibodies compared with persons without antibodies (25), and another study of U.S. military recruits found that seropositive persons had an 82% reduction in incidence of SARS-CoV-2 infection over a 6-week period (26).
covid spike protein antibody test results range