Coronavirus disease 2019 is a contagious disease caused by the virus, the severe acute respiratory coronavirus. The disease since have spread worldwide, and now an ongoing pandemic. The first known case was identified in Wuhan China on December 2019. Symptoms of Covid-19 are variable but often include coughing, fever, headaches, fatigue, breathing difficulties, loss of smell and loss of taste. Symptoms may begin one to fourteen days after the exposure to the virus. Older people are at higher risk of developing severe disease. Government officials have been ordering people to follow Covid-19 safety precautions such as wearing face mask, wearing face shield, practicing social distancing, always bring alcohol or sanitizer when going out etc.
Many people nowadays have their Covid-19 vaccine such as astrazeneca, j&j, pfizer, moderna etc. Several testing methods have been developed to diagnose the disease. The standard diagnostic method is by detection of the virus's nucleic acid by
real-time reverse transcription polymerase chain reaction, transcription-mediated amplification, or by reverse transcription loop-mediated isothern
amplification from a nasopharyngeal swab.
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