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All about COVID-19

The ultrastructural morphology exhibited by the 2019 Novel Coronavirus seen in an illustration released by the Centers for Disease Control and Prevention in January 29, 2020.

The ultrastructural morphology exhibited by the 2019 Novel Coronavirus seen in an illustration released by the Centers for Disease Control and Prevention in January 29, 2020. | Photo Credit: Reuters

The coronavirus (COVID-19) outbreak came to light when on December 31, 2019, China informed the World Health Organization (WHO) of a cluster of cases of pneumonia of an unknown cause in Wuhan City in Hubei province. On January 9, 2020, the WHO issued a statement saying Chinese researchers have made “preliminary determination” of the virus as a novel coronavirus.

Since then, more than 3,000 deaths have been reported due to COVID-19 across the world. Cases have been reported from more than 80 countries, including India. The virus has acquired the ability to spread among humans, with cases of human-to-human transmissions being reported first in Vietnam and Germany.

With the overall cases worldwide rising rapidly, the WHO has declared the outbreak a global health emergency .

Also read | Growing numbers: On India’s COVID-19 preparedness

COVID-19 symptoms can include fever, cough and shortness of breath. The illness also causes lung lesions and pneumonia. Milder cases may resemble the flu or a bad cold, making detection difficult. Chinese researchers have shared the whole genome sequence of COVID-19, however apart from some basic details, not much is known about the virus in terms of its source, precise duration of incubation, severity, and what makes it quite easily transmissible.

 

Here are some of the major stories regarding the outbreak: 

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Printable version | Feb 13, 2022 7:42:47 am | https://www.thehindu.com/sci-tech/science/all-about-the-china-coronavirus-covid-19/article56832384.ece