Every country or the whole world is trying to get a coronavirus vaccine but as we all know everything has side effects. So the covid-19 vaccine has side effects also. 

Covid-19 Vaccines have been found safe and approved by health authorities in many countries. The most commonly reported side effects, which typically lasted several days, were pain at the injection site, tiredness, headache, muscle pain, chills, joint pain, and fever. Of note, more people experienced these side effects after the second dose than after the first dose, so vaccination providers and recipients need to expect that there may be some side effects after either dose, but even more so after the second dose.

In addition to the typical vaccination reactions, there were also individual cases of sometimes severe side effects after vaccination, such as allergic shocks or vibration in bodies after vaccination.

Though, The available data suggests that after two doses, the vaccine is 95 percent effective at preventing COVID-19. So far, research has also found that the vaccine has a good safety profile.

The doctor says on covid-19 vaccine "Your immunity is incomplete [after one dose], and it might not be effective. So you have more than likely wasted the first dose if you don’t get the second one in time". However, almost 10% of those vaccinated with mRNA-1273 experienced fatigue, according to an interim report by an independent surveillance panel.

The Pfizer-BioNTech COVID-19 vaccine has not been approved or licensed by the U.S. Food and Drug Administration (FDA) but has been authorized for emergency use by FDA under an Emergency Use Authorization (EUA) to prevent Coronavirus Disease 2019 (COVID-19) for use in individuals 16 years of age and older.