At the first stage, the coronavirus manifests itself with symptoms that resemble side effects after the vaccine. Therefore, people who have a headache and fever after vaccination should still go through a PCR test, according to experts.
Some side effects of coronavirus vaccinations are almost indistinguishable from the early symptoms of COVID-19 itself, as scientists at King’s College London warn. They believe that people may mistakenly perceive the onset of the disease as a consequence of vaccination, and therefore go without masks to different public places and thereby unknowingly spread the coronavirus. Therefore, if they have symptoms such as fever or headache some time after vaccination, then it is worth doing a PCR test for coronavirus.
Recall that vaccines do not provide immediate protection, and the body needs about two weeks to learn how to fight the virus. But even this may not stop the penetration of the coronavirus into the body, since there are no vaccinations that are one hundred percent effective. Especially against the background of the march of increasingly advanced coronavirus mutations across the planet, which evade the effects of vaccines. But the most valuable thing about vaccination is that even if you get sick with coronavirus, the injection reduces the risk of severe illness and death due to it many times.
Approximately 10% of people suffer from side effects after vaccination. Most often they are caused by the immune response to vaccination and include headaches, fatigue and fever. But now experts from London emphasize that all these symptoms are also noted at the initial stage of COVID-19 development. Observations have shown that approximately 1% of people who experienced alleged side effects after vaccination actually got sick with coronavirus.