corana pandemic year information
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Answer:
The COVID-19 pandemic, also known as the coronavirus pandemic, is an ongoing global pandemic of coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The novel virus was first identified in the Chinese city of Wuhan in December 2019; a lockdown there and in other cities in surrounding Hubei failed to contain the outbreak. The World Health Organization (WHO) declared a Public Health Emergency of International Concern on 30 January 2020, and a pandemic on 11 March 2020. Multiple variants of the virus emerged, led by the Alpha, Beta, Gamma, Delta and Omicron variants. As of 8 December 2021, more than 267 million cases and 5.27 million deaths have been confirmed, making the pandemic one of the deadliest in history.
Answer:
The COVID-19 pandemic, also known as the coronavirus pandemic, is an ongoing global pandemic of coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The novel virus was first identified in the Chinese city of Wuhan in December 2019; a lockdown there and in other cities in surrounding Hubei failed to contain the outbreak. The World Health Organization (WHO) declared a Public Health Emergency of International Concern on 30 January 2020, and a pandemic on 11 March 2020. Multiple variants of the virus emerged, led by the Alpha, Beta, Gamma, Delta and Omicron variants. As of 8 December 2021, more than 267 million cases and 5.27 million deaths have been confirmed, making the pandemic one of the deadliest in history
Explanation:
Severe illness is more likely in elderly patients and those with certain underlying medical conditions. COVID-19 is airborne, spread via air contaminated by microscopic particles. The risk of infection is highest among people in close proximity, but can occur over longer distances, particularly indoors in poorly ventilated areas. Transmission can also occur, albeit rarely, via contaminated surfaces or fluids. Infected persons can remain contagious for up to 20 days, and can spread the virus even absent symptoms.
Vaccines have been approved and distributed in various countries. Mass vaccination campaigns began in December 2020. Other recommended preventive measures include social distancing, wearing face masks in public, ventilation/air-filtering, covering one's mouth when sneezing or coughing, hand washing, disinfecting surfaces, and quarantining those who have been exposed or are symptomatic. Treatments focus on addressing symptoms, but work is underway to develop antiviral medications. Governmental interventions include travel restrictions, lockdowns, business closures, workplace hazard controls, testing protocols, and tracing contacts of the infected.
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