TLR2 and COVID-19: The use of the first wave of COVID-19 in this work is due to the fact that there were still no variants of the virus that could resort to biases in the analysis of the evolution of the condition of these individuals, as well as the fact that the genetic data analyzed of these individuals reflect the observation that genetic characteristics, such as an SNP of the TLR2 gene, do not change in an individual during his or her course of life [27].