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The Health Information and Quality Authority has released its review of the evidence behind the decision to reduce the incubation period for people who test positive in the community for Covid-19 from 14 days to ten.
He examined 15 international studies.
Dr. Máirín Ryan, deputy executive director of HIQA, said that based on the evidence, he found that patients with mild to moderate Covid-19 disease are unlikely to be infectious beyond 10 days from their first symptoms.
However, he said some limited evidence from a small number of studies found that patients with severe to critical symptoms and those who are immunosuppressed can be infectious for 20 days or more.
HIQA said the evidence summary focused on evidence relevant to those with Covid-19 and had no impact on the length of the quarantine for close contacts of confirmed cases, household contacts of people with symptoms of the virus, and people arriving. to Ireland from a non-green place. list of countries.
These people must restrict their movements for 14 days.
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The World Health Organization says that data to date suggests that 80% of Covid-19 infections are mild or asymptomatic, 15% are serious infections that require oxygen, and 5% are critical and require ventilation.
Generally, you must be 15 minutes or more close to and within two meters of an infected person to be considered at risk or in close contact.
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