The average daily detection of new coronavirus in the United States is declining rapidly in the past two weeks. Public health experts in the United States say that the new coronavirus detection system in the United States has collapsed.
according to the US business insider website on the 13th, the period between the end of July and the beginning of August, labcorp and quest, two major independent medical laboratories in the United States, sent back test results for a week. When some people find that they test positive, they have spread the virus to many people. Therefore, the health institutions screened the tested objects, and the results showed that the daily average detection volume was 13% lower than that at the end of July. In the past week, the average number of tests per day in the United States was about 708000, compared with 818000 at the end of July. In some states, the decline was even greater: the average number of people tested per week in Texas was down 45 per cent from July, Arizona was down 36 per cent, and Florida was down 27 per cent.
according to the report, the United States is currently the country with the largest number of people tested per capita. About 204 people out of 100000 people are tested every day. The cumulative number of confirmed cases in the United States now accounts for about a quarter of the world’s confirmed cases. “Part of the reason for the huge demand for testing in the United States is that there is a massive outbreak in the United States,” said Caroline carnuso, a social epidemiologist who heads the contact tracking program at the University of Pennsylvania. Due to the problems of long testing period and insufficient detection quantity in the United States, it is difficult to detect new cases in time and control the spread of the epidemic. Our detection system has collapsed, which has led to our failure to track contacts because people have been waiting too long for the test results, we have missed the critical period of recommending home isolation for these people, and we have not been able to track who they might have been in contact with during the undiagnosed period. ”
while the number of tests in the United States decreased, the rate of positive tests increased. Over the past two weeks, new cases per day in the United States have fallen by an average of 18%. “We’re seeing a real decline in infection rates,” Brett girou, assistant secretary of the U.S. Department of health and human services, said Thursday But some public health experts believe that part of the reason for the decline in the number of infections is the decrease in testing, as the proportion of positive tests in some states is rising, and the proportion of positive tests in Texas has doubled in the past two weeks, from 12% to 24%.
amesh adaja, a senior scholar at Johns Hopkins University’s Center for health and safety, said that the rising proportion of positive results means that the detection system did not capture all positive cases. “Generally speaking, all infection cases should be monitored by public health institutions. When the positive rate rises, it means that the situation has changed.” The World Health Organization recommends that governments should maintain a positive rate of 5% or less for at least 14 days, or they will have to block the epidemic to control the epidemic. At present, the positive rate of 35 states in the United States is higher than 5%, among which 13 states, including Arizona, Florida and Texas, have a positive rate of more than 10%. Novel coronavirus pneumonia was diagnosed in 5408669 cases around 6:30 Beijing time in August 14th, according to Worldometer real-time statistics. 170157 cases died in total. Compared with the data at 6:30 the previous day, 48367 new confirmed cases and 1026 new deaths were recorded in the United States.