Even with vaccine, coronavirus variant spread may spiral out of control: Japanese expert
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No of outpatients at Tokyo cancer hospital drops by almost half amid virus pandemic
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Experts urge caution over escape mutations found in coronavirus variants in Japan
March 9, 2021 (Mainichi Japan)
A transmission electron microscope photo of SARS-CoV-2 provided by the U.S. National Institute of Allergy and Infectious Diseases is shown here. TOKYO A series of coronavirus variants appearing to have an escape mutation, which decreases the efficacy of immunity against the virus, have been found in and outside Japan. According to Japan s National Institute of Infectious Diseases (NIID), a rampant spread of the mutation within the country can pose risks for controlling infections in the mid- and long term, but does not make the vaccine ineffective at the present stage. This mutation differs from a new strain of the virus from Britain, which is said to be more transmissible than the original. What kind of risks can be feared from the escape mutation ?
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Coronavirus antibodies last 3-6 months from onset of symptoms: Japan-led study The Mainichi © The Mainichi Yoshihiro Kawaoka, professor of virology at the University of Tokyo s Institute of Medical Science, is seen in this photo taken in Tokyo s Minato Ward on April 21, 2016. (Mainichi/Norikazu Chiba)
TOKYO Antibodies in coronavirus patients last for at least three to six months after the onset of symptoms, according to the findings of a nationwide study conducted by a research team headed by a professor at the University of Tokyo s Institute of Medical Science.
The discovery in patients of neutralizing antibodies, which defend cells from infections, also led the team to say the body can to some extent defend itself from reinfection. The findings were announced in the online edition of British medical journal EClinicalMedicine.