No.  It is impossible for any of the current vaccines to cause a false positive on a diagnostic test for covid-19 disease.    https://www.gavi.org/vaccineswork/can-you-test-positive-covid-19-test-after-getting-vaccine https://www.cdc.gov/coronavirus/2019-ncov/vaccines/facts.html https://www.goodrx.com/blog/testing-positive-for-covid-after-getting-vaccinated/ https://www.nebraskamed.com/COVID/you-asked-we-answered-will-the-vaccine-make-you-test-positive https://www.forb