"The government will closely watch developments of the research," Suga told a news conference.
Some experts were skeptical, however.
"I think these kinds of claims might even lead to a high number of false negatives for PCR tests," pharmacist and medical writer Shuichi Aoshima wrote on Twitter, adding that tests after use of the germicide would register lower levels of the virus.
"It's the same as dripping povidone-iodine onto a virus sample."
(Writer: Sakura Murakami, Chang-Ran Kim | Editor: Clarence Fernandez)
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