A Hong Kong man who recouped from COVID-19 was infected again four-and-a-half months after the fact in the main archived occasion of human re-contamination, specialists at the University of Hong Kong said on Monday.
The findings indicate the infection, which has killed in excess of 800,000 people around the world, may keep on spreading among the worldwide populace despite herd immunity, they said.
The 33-year-old male was freed from COVID-19 and released from a medical clinic in April, but tested positive again after returning from Spain via Britain on Aug. 15.
The patient had appeared to be previously healthy, scientists said in the paper, which was acknowledged by the universal clinical diary Clinical Infectious Diseases.
He was found to have contracted a different coronavirus strain from the one he had recently contracted and stayed asymptomatic for the second disease.
“The finding doesn’t mean taking vaccines will be pointless,” Dr. Kai-Wang To, one of the main creators of the paper, told Reuters. “Insusceptibility actuated by immunization can be unique in relation to those initiated by common contamination,” To said. “Will need to wait for the results of the vaccine trials to see if how effective vaccines are.”
World Health Organization (WHO) epidemiologist Maria Van Kerkhove said on Monday that there was no compelling reason to bounce to any ends because of the Hong Kong case.
Examples of individuals released from medical clinics and testing positive again for COVID-19 disease have been accounted for in terrain China. Be that as it may, in those cases it was not satisfactory whether they had gotten the infection again after full recuperation – as happened to the Hong Kong patient – or still had the virus in their body from the initial infection.
The preliminary number of patients in China who tried positive again once being released from medical clinic was 5%-15%, Wang Guiqiang, an irresistible infection authority in China’s master bunch for COVID-19 treatment, said during a press briefing in May.
One explanation was that the virus still existed in the lungs of patients but was not detected in samples taken from upper parts of the respiratory tract, he said. Other possible causes were low sensitivity of tests and weak immunity that could lead to persistent positive results, he added.
Jeffrey Barrett, a specialist and expert with the COVID-19 Genome Project at Britain’s Wellcome Sanger Institute, said in messaged remarks to Reuters that it was very hard to make any strong inference from a single observation.
“Given the quantity of worldwide infections to date, seeing of re-infection isn’t surprising even if it is very rare occurrence,” he said. (Revealing by Farah Master in Hong Kong, Roxanne Liu in Beijing and Kate Kelland in London; Editing by Alex Richardson).
This news is originally posted on globalnews.ca