Abstract
The syndromic surveillance of a group of diseases that have similar signs and symptoms, a common pathophysiology, and diverse etiology is aimed at rapidly detecting the presence of outbreaks which could potentially harm public health. This includes not only known outbreaks of infectious origin but also those of unknown origin. In patients suspected of having SARS-CoV-2/COVID-19, it is recommended to consider other etiologies of tropical fever in the differential diagnosis when these patients live in or come from endemic areas, as is the case of dengue, malaria, leptospirosis, acute Chagas disease, and rickettsiosis, among other endemic diseases. The possibility of SARS-CoV-2/AH1 AH5N1 MERS-CoV coinfection with these pathogens should also be considered.