239 scientists from 32 countries signed the open letter to the World Health Organization (WHO), which states that the WHO underestimates the spread of the coronavirus by air and urges to reconsider its recommendations as The New York Times reported.
The WHO has long considered that first of all, the coronavirus spreads by large drops discharged by people during cough and sneezing as they fall on the surface.
However, in the open letter, 239 scientists provided evidence that the finer particles may infect people and urged the organization to reconsider its recommendations.
The researcher workers plan to publish a letter in the scientific journal next week.
It is noted that the transmission of the virus by air is the important factor of the pandemic, especially in the crowded rooms with bad ventilation; it can significantly influence the measures of the containment the virus.
Particularly, the masks might be needed in the rooms even with the observance of social distance. The medical workers who treat the Covid-19 patients will need N95 masks, which filter even the smallest particles.
The ventilation systems of the schools, nursing homes, accommodation and enterprises may need the minimization of the air recirculation and use of the new powerful filters. Besides, UV light might be needed to eliminate the virus.
Earlier, WHO Director General Tedros Adhanom Ghebreyesus reminded that the coronavirus pandemic is accelerating around the world as a number of countries have decided to re-open their economies.