The president of Mexico, Andrés Manuel López Obrador, reported this Monday that for now he will not be vaccinated against covid-19, and argued that he has enough antibodies to not become infected or spread.
For his part, the president of Argentina, Alberto Fernández, reported on the weekend that he tested positive for covid-19, despite having received two doses of the Sputnik V vaccine. This has generated various concerns in society about the vaccine.
Molecular biology doctor Roselyn Lemus-Martin spoke to CNN to respond to concerns.