Environmental Sciences, asked by fatimakulsum8, 6 months ago

Write a detailed note on 'Covid - 19 ' prevalent currently in the world.​

Answers

Answered by kav29aug
2

Answer:

Every face was open with smile b4 corona pandemic and we were able to see their smiles....... But not now.

But soon we will again see the smiles.......

Bich le jo rah gaya h woh apne aap add kar lena

Answered by SaI20065
3

Coronavirus disease 2019 (COVID-19) is an infectious disease caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2).It was first identified in December 2019 in Wuhan, China, and has resulted in an ongoing pandemic.The first confirmed case has been traced back to 17 November 2019.Traces of the virus have been found in wastewater that was collected from Milan and Turin, Italy, on 18 December 2019. As of 26 June 2020, more than 9.62 million cases have been reported across 188 countries and territories, resulting in more than 489,000 deaths. More than 4.85 million people have recovered.

Other names

Coronavirus

Corona

COVID

2019-nCoV acute respiratory disease

Novel coronavirus pneumonia

Severe pneumonia with novel pathogens

Wuhan Acute Respiratory Syndrome

SymptomsFever, cough, fatigue, shortness of breath, loss of smell; sometimes no symptoms at allComplicationsPneumonia, viral sepsis, acute respiratory distress syndrome, kidney failure, cytokine release syndromeUsual onset2–14 days (typically 5) from infectionCausesSevere acute respiratory syndrome coronavirus 2 (SARS-CoV-2)Risk factorsTravel, viral exposureDiagnostic methodrRT-PCR testing, CT scanPreventionHand washing, face coverings, quarantine, social distancingTreatmentSymptomatic and supportiveFrequency9,628,658 confirmed casesDeaths489,731 (5.1% of confirmed cases)

Common symptoms include fever, cough, fatigue, shortness of breath, and loss of smell and taste. While the majority of cases result in mild symptoms, some progress to acute respiratory distress syndrome (ARDS) possibly precipitated by cytokine storm,multi-organ failure, septic shock, and blood clots.The time from exposure to onset of symptoms is typically around five days, but may range from two to fourteen days.

The virus is primarily spread between people during close contact,most often via small droplets produced by coughing,sneezing, and talking.The droplets usually fall to the ground or onto surfaces rather than travelling through air over long distances.However, research as of June 2020 has shown that speech-generated droplets may remain airborne for tens of minutes.Less commonly, people may become infected by touching a contaminated surface and then touching their face.It is most contagious during the first three days after the onset of symptoms, although spread is possible before symptoms appear, and from people who do not show symptoms.The standard method of diagnosis is by real-time reverse transcription polymerase chain reaction (rRT-PCR) from a nasopharyngeal swab.

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