A group of doctors from the United States tracked the spread of coronavirus infection in Atlanta (the capital of the state of Georgia) with the two different tests for antibodies to SARS-CoV-2, 7% a positive result. The results of the study outlined in an article published May 1 in the electronic library medRxiv.These results support the notion that the spread of the virus is wider than shows testing, but also suggests that most people in Atlanta are still vulnerable to this virus,” said the scientists.
The study concluded that nine of the 127 randomly selected residents of Atlanta have been in the past carriers of the virus.
Over the past months in Russia and abroad have created several variants of test systems that determine the traces of the presence of the novel coronavirus in the biological material of the patient. Most of them are based either on the detection of particles RNA of the pathogen COVID-19 using polymerase chain reaction (PCR) and its analogs, or the detection of antibodies to coronavirus, a new type.
Both methods have their advantages. In particular, PCR tests can detect the virus in the body before the appearance of symptoms of infection, and antibodies to SARS-CoV-2 allow us to estimate the prevalence of infection after a significant portion of its media recovered or moved it asymptomatic.
On 7 may, Johns Hopkins University reported that the number of victims of coronavirus in the United States exceeded 73 thousand people. In informational, the number of identified cases of coronavirus is 1 223 468, which recovered about 190 thousand people.
The spread of the coronavirus SARS-CoV-2, which causes the disease COVID-19 began in late December of last year. The source of infection was the Chinese city of Wuhan. For several months the disease has covered more than 210 countries around the world. March 11, the who declared a pandemic coronavirus.
According to Worldometer on May 7, the planet was more than 3,83 million cases of the disease, died more than 265 thousand people, recovered 1.3 million