The idea that many cases of COVID are asymptomatic keeps us in the hope that we have already had and conquered the new coronavirus. It is a convenient theory because, if true, you could have developed antibodies and convinced that the virus is not right for you. Now, a new study gives even more hope to many Americans. UCLA researchers found evidence that the virus may have been circulating in the United States in late December, based on an increase in a common symptom of COVID, particularly at the time: Cough.The new study, published in Journal of Medical Internet Research, found a significant increase in visits to health clinics and hospital patients who reported respiratory symptoms as early as the week of December 22 and through February. The researchers examined data from three hospitals and 180 clinics in the UCLA health system and found that patients who sought medical attention due to a cough exceeded the prediction level by 95% over of these months.
The researchers compared the number of patients who reported a cough with the average of the previous five seasons. For every 1,000 visits, they found that there were two more visits related to normal cough at outpatient clinics. Meanwhile, emergency services recorded 19 more visits than usual and hospitalizations with acute respiratory failure recorded 39 more than average visits. These figures show that a statistically significant positive increase in patients with respiratory symptoms occurred from December to February in California.
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The most accepted chronology is that COVID began in December in China, according to a January study conducted last January. The Lancet, and traveled to the rest of the world the following month. However, there are other studies that support the idea that the virus had been circulating long before. A study in the International Journal of Antimicrobial Agents reports that there was a patient in France with COVID in late December and another study published in Infection, genetics and evolution notes that COVID began circulating between October 6 and December 11. If COVID already existed on December 22, this completely alters the current chronology of the Centers for Disease Control and Prevention (CDC). According to the CDC, the first COVID case was an Oregon resident who had returned from traveling to Wuhan and reported symptoms to a clinic on Jan. 19, according to The New England Journal of MedicineWhile it’s almost impossible to know for sure if you had COVID in December, this recent study makes a compelling argument that those who coughed in late 2019 may have been battling the virus at the start of the pandemic. And for more symptoms that patients can’t shake, check out the 98 longest COVID symptoms you need to know.Read the original article a Better life.
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