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Gamma is the name that the World Health Organization (WHO) gave to the P.1. Lineage, a variant of Covid that was discovered in Manaus (Brazil) in early January 2021 and has 15 unique mutations.

Also, this variant is more likely to develop complications at a younger age, and the possibility of reinfection can vary between 25 and 60%.

It also has a certain ability to evade antibodies generated by vaccines or previous Covid infections. In fact, the protection of vaccines is reduced by around 30%, so its severity is greater than the original variant.

Consequently, Gamma is the main responsible for the saturation of hospitals by Covid cases in Brazil in March 2021 and is currently the variant that predominates in many Latin American countries.

The gamma variant, on the other hand, is associated with higher hospitalization rates and increased breakthrough infections. The variant, also known as P.1, now accounts for 16% of the cases in Washington state and is the fastest-rising variant in the state, he said.

The P.1 variant is highly infectious. It can quickly spread from one person to another, with some cases suggesting the variant may be less likely to respond to antibody treatments, according to a June Department of Health report.