If the coronavirus mutated to 30 different strains then how many vaccines must be produced?

It is believed that mutations may not interfere with the effectiveness of the COVID-19 vaccine. In fact, the slow and mild nature of the mutations of the novel coronavirus is good news for a vaccine.

Researchers say that the virus is still so similar now to the initial sequence that differences are unlikely to matter in terms of the vaccine.

Vaccines, in general, tend to target an early version of the virus. Usually, an older strain of a virus will preserve enough features that it will provide immunity against a whole group of variants.