>>12850551What do you want the source. My source is any study concerning vaccines, because without the toxic ingredients in the cell culture, the adjuvants or the components the lipid nano particle there is no immune response to a vaccine.
Do you want a test manual where they say it isn’t really suited to detect it, but could be helpful in some cases given the clinical indication? They always say the physician is the one in charge and they just give him additional data that may or may not be relevant. Again look up any test.
Have an example with SARS-CoV-2
https://www.fda.gov/media/139283/download>11.3. Negative results do not preclude SARS-CoV-2 infection and should not be used as the sole basis for patient management decisions. IgM antibodies may not be detected in the first few days of infection; the sensitivity of the Biohit SARS-CoV-2 IgM/IgG Antibody Test Kit early after infection is unknown. False positive results for IgM and IgG antibodies may occur due to cross-reactivity from pre-existing antibodies or other possible causes.11.4. A negative result can occur if the quantity of antibodies for the SARS-CoV-2 virus present in the specimen is below the detection limit of the assay, or if the virus has undergone minor amino acid mutation(s) in the epitope recognized by the antibody used in the test.
11.5. A positive result may not indicate previous SARS-CoV-2 infection. Consider other information, including clinical history and local disease prevalence, in assessing the need for an alternative serology test to confirm an immune response. Positive results may be due to past or present infection with non-SARS-CoV-2 coronavirus strains, such as coronavirus HKU1, NL63, OC43, or 229E.
It’s even written on the products.
And here is an introduction to the issues
https://www.nature.com/articles/nbt1519If people here aren’t schooled to do scientific research, I will give the evidence for antibody promiscuity and the associated euphemisms.