Covid What is known about the South African strain?
Does it look like the British strain?
How contagious are they?
The Centers for Disease Control and Prevention (CDC) will require a
negative Covid-19 diagnostic test
for all people who want to enter the country by air.
To justify the measure, which
will take effect on January 26
, the CDC has expressed concern about new variants of the virus found in countries such as the
United Kingdom or South Africa
, which are more easily transmitted.
The US health authorities have already detected dozens of cases of these variants throughout the country.
"Variants of the SARS-CoV-2 virus continue to appear in countries around the world, and there is evidence of increased transmissibility of some of these variants," he said in a statement.
"With the United States still in an emerging stage, the requirement for testing for air travelers
will help slow the spread of the virus
as we work to vaccinate the American population," he added.
The test to enter the United States must have been carried out in the three days prior to flying.
In addition, it
is necessary to provide the result in a written document
- either on paper or electronically - to the airline.
If the illness has already been had, it will be necessary to present documentation proving that the passenger has already recovered.
Likewise, the CDC has specified that
airlines must confirm that the test is negative
and, in the event that the passenger has not undergone one, the companies will not be able to allow their entry into the aircraft, as reported by the CNN television network .
CDC Director
Robert Redfield
has noted that while diagnostic tests do not eliminate all risk, "when combined with a period of isolation and daily precautions, such as wearing a mask, they can make travel safer, healthier. and more responsible for reducing the spread in airplanes, airports and destinations. "
The United States is the country hardest hit by the Covid-19 pandemic in the world.
So far, US health authorities have counted more than
22.7 million infections, including about 380,000 fatalities
due to the disease.
According to the criteria of The Trust Project
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