challenges for scientists to test and find a cure for covid19
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The official name for disease caused by nCoV2019 (also referred SARS-CoV-2) is COVID-19, short for Corona Virus Disease-2019. The WHO declared COVID-19 as global pandemic on March 11, 2020. A first such designation since the H1N1 influenza pandemic in 2009. The nCoV2019 has been spreading at a supersonic speed as a severe deadly disease, causing considerable anxieties at all levels and now reported on every continent except Antarctica. There are no drugs or other proven therapeutic options to prevent or treat COVID-19. Current clinical management includes infection prevention, supportive medical care including supplemental oxygen and mechanical ventilatory support when indicated. Since the number of people infected with COVID-19 continues to rise in alarming rate globally, the full extent and severity of this outbreak still remains unclear.
Answer:People around the world commonly get infected with four relatively ‘benign’ strains of human coronaviruses (hCoVs) -- 229E, NL63, OC43, and HKU1. These strains typically cause mild respiratory flu like seasonal illnesses in the winter and spring months during temperate climates. Sero-prevalence data for these hCoVs suggest that exposure is common in early childhood, with approximately 90% of adults being seropositive for 229E, OC43, and NL63 strains and 60% being seropositive for HKU1 strain.
In December 2019, a never identified before strain of novel coronavirus (nCoV) causing severe respiratory associated illnesses identified in Wuhan, China, has been the beginning of this pandemic. Unlike other hCoVs, this nCoV2019 has a much larger global spread and has been infecting more individuals than SARS-CoV that causes severe acute respiratory syndrome (SARS 2003) and the Middle East Respiratory Syndrome (MERS 2012). These earlier hCoVs were confirmed to have originated in bats and nCoV2019 is also suspected to.
The official name for disease caused by nCoV2019 (also referred SARS-CoV-2) is COVID-19, short for Corona Virus Disease-2019. The WHO declared COVID-19 as global pandemic on March 11, 2020. A first such designation since the H1N1 influenza pandemic in 2009. The nCoV2019 has been spreading at a supersonic speed as a severe deadly disease, causing considerable anxieties at all levels and now reported on every continent except Antarctica. There are no drugs or other proven therapeutic options to prevent or treat COVID-19. Current clinical management includes infection prevention, supportive medical care including supplemental oxygen and mechanical ventilatory support when indicated. Since the number of people infected with COVID-19 continues to rise in alarming rate globally, the full extent and severity of this outbreak still remains unclear.
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