evidence: Even if you could shed spike protein after vaccination, that wouldn’t be enough to cause an infection. For that you need the entire virus, which the vaccines don’t contain. [...] In England, people who became infected despite being vaccinated with either the Pfizer or AstraZeneca vaccines (known as a breakthrough infection), were only half as likely to pass their infection on to household contacts compared to infected people who were not vaccinated. In Israel, people who had a breakthrough infection after the Pfizer vaccine had less virus cultured from their nose than people who had not been vaccinated.