Some interesting evidence about how many people are asymptomatic in Holland, based on blood donations of 10,000 people, it was found that 3% had antibodies, that means about 15 times the reported cases were asymptomatic, based on this data, covid-19 has an estimated mortality rate of of about .66% in developed countries according to these figures. There are some issues concerning the percentage of people who serum converted and this has to be factored into the data.
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Dutch study suggests 3% of population may have coronavirus antibodies
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AMSTERDAM (Reuters) - A study of Dutch blood donors has found that around 3% have developed antibodies against the new coronavirus, health authorities said on Thursday, an indication of what percentage of the Dutch population may have already had the disease.
The head of the National Institute for Health (RIVM), Jaap van Dissel, disclosed the results during a debate with parliament.
“This study shows that about 3% of Dutch people have developed antibodies against the coronavirus,” Van Dissel said. “You can calculate from that, it’s several hundred thousand people” in a country of 17 million.
There are 28,158 confirmed coronavirus cases in the Netherlands, but only the very ill and healthcare workers are currently being tested.
The blood donation service Sanquin announced it would begin testing on 10,000 samples weekly on March 19, but later said it would only disclose results to the RIVM.