Affiliation: | aHealth Care Department, Universidad Autonoma Metropolitana-Xochimilco, Mexico City, Mexico;bInfectious Diseases Department, Instituto Nacional de la Nutricion Salvador Zubiran, Mexico City, Mexico;cHealth Care Department, Universidad Autonoma Metropolitana-Xochimilco, Mexico City, Mexico;fPathology Department, Instituto Nacional de la Nutricion Salvador Zubiran, Mexico City, Mexico;gDepartment of Microbiology Research, Instituto Nacional de Enfermedades Respiratorias, Mexico City, Mexico |