At that time, 50% of Covid infections occur, says CDC
The CDC now says that half of coronavirus transmission occurs before the onset of symptoms.
Months in the coronavirus pandemic, experts always try to locate the point of view when most of the transmission occurs. Part of the reason whyCovid-19 numbers increase exponentially When they do, it's because people can and infect others without being aware that they are infected themselves. And while some of these infected people will never develop symptoms, other expert experts believe that it takes between two and 14 days after contraction of COVID-19 so that the symptoms appear. A recent update of disease control and prevention centers (CDC) estimates that 50% of coronavirus transmission occurs in this period - once infectedindividuals are pre-symptomatic.
In May, the CDC used modeling to trace five possible scenarios for the virus trajectory, also showing the potential effectiveness of certain mitigation techniques. At that time, the "best estimate" of the agency was that 40% of the transmissions occur before the start of symptoms. Now, the scenarios have been updated with data collected until June 29 and the CDC estimates that 10% additional transmissions occur when individuals are pre-symptomatic. Currently, the Agency estimates that half of the transmission occurs before the onset of symptoms.
The CDC notes that "the percentage of transmission occurring before the appearance of the symptoms will be influenced by the way in which symptomatic people and contacts of known cases are quarantined" "." For example, a pre-symptomatic person for two weeks and who does not take a social distance or other precautions will probably represent more transmission than someone suspecting that they have been exposed and immediately starting in quarantine . If you think you've been exposed to the virus, it is essential that you are autonomous for at least two weeks - this new estimated percentage makes this step even more vital.
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The CDC emphasizes that these scenarios are just projections and notes that monitoring pre-symptomatic and asymptomatic cases is difficult. But although percentages are not completely precise, pre-symptomatic propagation is considered a significant contribution to the rapid spread of the pandemic.
For more updates, checkThe number of coovidants without symptoms increases, says CDC.
