write 150 words on novel covid-19
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Answer:
As of April 2, the novel coronavirus pandemic has spread across 203 countries and territories around the world, killing more than 47,200 individuals and infecting more than 9.4 lakh people.
Most, if not all transmission of the virus thus far, has been observed to have taken place when an individual has come into contact with respiratory droplets and droplet nuclei emitted by infected persons through coughing, sneezing, talking, and direct/indirect touching.
Meanwhile, several other modes of transmission have also been discussed and studied since the outbreak of COVID-19. And now, a new study has found evidence that hints at the possibility of airborne transmission of the novel coronavirus, reports the South China Morning Post. In spite of its findings, however, the researchers have insisted that this “does not confirm the airborne spread” of the deadly virus just yet.
Airborne transmission of a virus occurs through tiny aerosol droplets which are smaller than 5 micrometers in diametre. These droplets can linger in the air for hours, and anyone inhaling them can effectively get infected with the said virus. In the case of the novel coronavirus, such transmission could also cause more damage, as the virus gets inhaled deep into the lungs.
To examine the likelihood of airborne transmission in the case of the novel coronavirus, researchers from the University of Nebraska Medical Centre and the National Strategic Research Institute at the University of Nebraska collected air samples from 11 rooms where 13 confirmed cases of COVID-19 were being treated.
After studying the samples, genetic material from the coronavirus—which was emitted by the patients—was naturally found in obvious places such as lavatories and daily-use items. But more importantly, 63.2% of the air samples collected from the inside of the rooms, and 66.7% of those taken from outside those rooms, also showed traces of the virus. The in-room samples had higher traces of the virus than those taken from the corridors.
The highest concentration of the virus’ genome, however, was found 2 metres away from a patient who was receiving oxygen through a nasal tube.
Such circumstances particularly increase the possibility of airborne transmission of COVID-19, says the World Health Organisation.
Explanation:please stay at home