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COVID-19 is an infectious respiratory disease caused by the SARS-CoV-2 coronavirus, which was recently found. Corona is represented by the letter CO, virus by the letter VI, and illness by the letter D.
Fever, cough, and exhaustion are the most frequent symptoms. Shortness of breath, chest discomfort or pressure, muscular or body pains, headache, loss of taste or smell, disorientation, sore throat, congestion or runny nose, diarrhea, nausea and vomiting, stomach pain, and skin rashes are only few of the other symptoms. Infants may have difficulties eating in addition to these symptoms. COVID-19 can make children of any age sick. While children and adults exhibit comparable symptoms, children are more likely to have a milder disease than adults. Difficulty breathing/fast or shallow breathing (also grunting, inability to breastfeed in infants), blue lips or face, chest pain or pressure, confusion, inability to awaken/not interacting, inability to drink or keep down any liquids, and severe stomach pain are all symptoms that require immediate medical attention.
When an infected person coughs, sneezes, speaks, sings, or breathes, the virus can spread in tiny droplets from their lips or nose. People can be infectious whether they have symptoms because these particles range in size from larger respiratory droplets to tiny aerosols. According to the data thus far, the virus transmits mostly amongst persons who are near one another, generally within 1 meter. When virus-containing aerosols or droplets are breathed or come into direct contact with the eyes, nose, or mouth, a person can get infected. The virus can also spread in cramped and/or poorly ventilated interior environments, where people tend to spend longer amounts of time. Indoor places are riskier than outside locations, especially those with insufficient ventilation. People can also become infected by touching their lips, nose, or eyes after encountering virus-infected surfaces. Experts are still investigating how COVID-19 spreads and which conditions are the most dangerous.
Yes, rapid antigen test and polymerase chain reaction (PCR) test can be used for detection of SARS-CoV-2 cases without symptoms, which can provide to determine asymptomatic individuals.
The risk of reinfection in the short term (within 90 days) appears to be minimal. However, there have lately been reports of rare occurrences of reinfection. We don’t know how often reinfection happens due to a lack of community testing and surveillance.