One of the most insidious features of the new crown behind COVID-19 is its ability to solve unsuspecting guests, but never show any signs of ill will be able to spread the virus to others. In a study published on June 3 in the Annals of Internal Medicine, researchers from the Scripps Research Institute Translational examined data from 16 different groups of COVID-19 patients from around the world have a better idea of how many cases of Corona chances of being traced back to people who spread the virus without ever knowing that they were infected. Their conclusion: at least 30% and probably 40% to 45%. This so-called asymptomatic spread is unique for a respiratory viruses; most causes symptoms and disease when they infect their hosts. SARS-CoV-2, the virus responsible COVID-19, but it’s particularly smart because it can also infect computers silently, and ignorant as a peasant in his campaign contagious. “The area which we found extremely high,” says Dr. Eric Topol, director and founder of the Institute and one of the authors of the article. “This is the area that can happen with SARS-CoV-2, which is to be any symptoms at [the death]. This is not similar at all, such as viruses or pathogens we found that the potential to kill past. what we have here is an extraordinary spectrum, including this quiet, stealth mode to infect someone. “Topol and his co-author, Daniel Oran, including from published and unpublished studies that asymptomatic individuals and focused on 16 different Group controlled by people for COVID-19 around the world or tested. Among other things, this is a cohort of more than 13,000 people in Iceland to COVID-19 (which contains the largest group included), as well as residents of Vo, Italy has been tested is voluntary; Passengers aboard the Diamond Princess cruise ship, where there was an outbreak; Visitors homeless shelters in Boston and Los Angeles; prisoners; University students; and nursing home residents in King County, WA. Five of these studies included the examination of follow-up of participants; They showed that only a small fraction of the people who were asymptomatic when she tested positive for the first time, then went on to develop symptoms. The researchers were able to distinguish between people, the positive pre-symptomatic-those tests, but eventually go on to develop symptoms and those who are truly asymptomatic, and positively the development of tests for COVID-19 but never obvious symptoms. championships among the more than 2,300 people in the population Vo, none of the 41% who had, if ever develop symptoms for a period of 14 days is not tested positive symptoms. It would be cause for concern, if not start for other research showing the level of the virus in people who are asymptomatic, are not similar to those observed in humans who develop symptoms. This suggests that, while they may not outwardly show any signs of illness, people are asymptomatic still they carry a potentially dangerous strain of infectious virus, which can spread to others. Another problem, says Topol, is that the virus is asymptomatic in the bodies of others, quiet roads are damaged. Among the 331 passengers aboard the Diamond Princess cruise ship who tested positive but had no symptoms, 76 had lung TAC people and nearly half of the signs of damage lung tissue showed typical crown infection. “The infected people without symptoms actually get a lot of damage to his body to do and do not know,” says Topol. Another small study in South Korea asymptomatic with 10 people from a group of 139 patients COVID-19 supports these results studied. Put together all the data, he says, “supports basically the reason why we all have to wear masks because no one knows that it is an asymptomatic carrier. The person does not know the person and the contacts do not know. This has a huge impact and is to learn an area that we need to learn more how to understand the test people without symptoms on a large scale, these people better and follow their ability to transfer exactly that [the] virus for certain. “as officials of public health are testing the entire population does not understand that asymptomatic disease are still large gaps, he says. Infected people, but symptoms because their immune system to control the virus, or because the virus has not harbor less effective? Or are asymptomatic these people because they have no immunity else, crown often responsible for the common cold and therefore already may have some protection against SARS-CoV-2 and have? Another question that the data recovery includes how long asymptomatic people are infectious. In cases of analysis Topol from the US aircraft carrier U.S.S. It would be Theodore Roosevelt suggests that they may be able to spread the virus longer than the assumed 14 days reaching implications for public health policy have focused on the reopening of the cities and safely states and further support the need for wearing masks in public places. While widespread testing of people one way would be to catch more of these asymptomatic cases and help prevent these people on the need for social distancing and other measures to educate the spread of the virus to public health officials, Topol said that for others to options need. He and his team are studying changes in heart rate that could be captured on SmartWatch treatments and fitness bands and could signal a possible infection. These changes at the individual level may not be useful because changes in heart rate may be due to a number of different factors such as stress and heart disease. However, if, for example, resting heart rate levels rise to a particular community and remain elevated for a period of time that could show a possible COVID-19 cluster and national individuals and try to increase their doctors and follow on care in the community. “Even if only a fraction of the 100 million Americans that one SmartWatch or fitness band that is involved, then we could go out and do studies to the information we have now Antigen test, missing antibody tests and we are able to look at portability” Topol says . “The priorities during a pandemic are absolutely looking for the sick. But we must also not miss the importance of this sector is to understand the asymptomatic spread. Every person who is sick, there is a lot of people who have the virus and not know it. “ Picture copyright by Simon Dawson EPA EFE / Shutterstock
Almost half of Corona can be to people without any symptoms traced
