Pese a las elevadas temperaturas, el coronavirus no desapareció en Israel

Pese a las elevadas temperaturas, el coronavirus no desapareció en Israel
Pese a las elevadas temperaturas, el coronavirus no desapareció en Israel

Muchas enfermedades infecciosas son estacionales, por lo que no era descabellado esperar que el nuevo coronavirus también lo fuera. Pero a medida que avanza el verano, ha quedado claro que la luz solar y el clima cálido tienen poco impacto en la potencia de la enfermedad. En Argentina también se creyó en algun momento que el virus disminuía su poder de contagio  cuando el clima superaba los 26°. Mito

Hasta la fecha, algunos de los países más calientes del mundo, como Brasil y Arabia Saudita, por ejemplo, han tenido los brotes más grandes

“Había esperanza de que el coronavirus desapareciera en el verano porque algunos virus son sensibles al clima y, al menos inicialmente, también parecía que la distribución del virus era menor en aquellos países con climas más templados”, dijo el profesor Chaim Putterman. decano asociado de investigación y director del Instituto de Investigación GMC en la Facultad de Medicina Azrieli de la Universidad Bar-Ilan. “La esperanza y la oración era que en el verano, el clima más cálido en Israel debilitaría la propagación de la corona.

Desafortunadamente, eso no ocurrió.»

La gripe es un ejemplo de enfermedad estacional. Los brotes aumentan en el otoño y aumentan en el invierno. Los peores brotes de poliomielitis, cuando todavía era una enfermedad común, ocurrieron en el verano.

El desafío, según Ran Nir-Paz, médico senior del departamento de microbiología clínica y enfermedades infecciosas, es que el nuevo coronavirus es precisamente nuevo y, por lo tanto, aún se sabe poco al respecto. Por lo tanto, no podemos hacer suposiciones.

¿Y qué hay del cuento de que el sol mata a COVID-19 ?
Nir-Paz dijo que este supuesto está lejos de la realidad. Más bien, existe un entendimiento de que cuando las personas están afuera es menos probable que contraigan coronavirus. Pero esto tiene más que ver con el hecho de que con aire fresco y más espacio entre las personas, el riesgo de infección disminuye.

La investigación ha demostrado que el nuevo coronavirus se transmite de persona a persona en pequeñas gotas llamadas aerosoles que flotan en el aire y se acumulan con el tiempo. Afuera, el aire se mueve más.
“El reemplazo de aire es enorme”, dijo Nir-Paz. “Afuera hay mucho [movimiento]. Adentro hay muy poco.

Leer más: Coronavirus en Israel: fuertes restricciones durante los fines de semana

Algunos científicos están estudiando si la luz ultravioleta del sol destruye el coronavirus. Un estudio publicado en el Journal of Infectious Diseases encontró que el 90% del coronavirus infeccioso se inactiva en menos de 20 minutos cuando se expone a la luz solar simulada representativa del solsticio de verano a 40 ° N de latitud al nivel del mar en un día despejado. Sin embargo, se necesitan más estudios para confirmar este resultado, y la cantidad de luz ultravioleta que llega a la superficie de la Tierra no es constante y, por lo tanto, no se puede confiar en ella.

Putterman enfatizó que estar afuera no es suficiente para garantizar la seguridad de uno contra el coronavirus.

Dijo que el coronavirus se propaga en grandes multitudes, incluso si es verano e incluso afuera.
«La densidad de la multitud es el factor más importante», dijo.



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