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This study deals with the estimation of the trajectory of coronavirusCOVID-19 adhering to respiratory droplets projected horizontally, consideringthe geographical altitude. The size of viruses and respiratory droplets is thefactor that determines the trajectory of the microparticles in a viscous mediumsuch as air; For this purpose, a graphical comparison of the diameters andmasses of the microparticles produced in respiratory activity has been made.The estimation of the vertical movement of the microparticles through the airis based on Stokes' Law, it was determined that respiratory droplets smallerthan 10 {\mu}m in diameter have very small speeds, in practice they arefloating for a few seconds before evaporating in the air; Regarding thehorizontal displacement of respiratory droplets, frames from Scharfman et al.to determine its scope. In the case of a sneeze, the respiratory droplets canreach a distance of 1.65 m in 1 s, stopping rapidly until reaching 1.71 m in 2seconds, then an analysis of the effect of geographical altitude on themovement of the micro-droplets was made, determining minimal change inkinematic variables.

Estimaci\'on de la trayectoria de coronavirus covid-19 adheridas a  gotitas respiratorias proyectados horizontalmente, considerando la altitud  geogr\'afica