Hong Kong’s first locally developed nasal spray flu vaccine could be made available in three years by conducting clinical trials in mainland China and seeking approval from the national drug authority instead of waiting for endorsement from local officials, according to the city’s top microbiologist.
University of Hong Kong professor Yuen Kwok-yung on Sunday said he hoped the spray would be in use before his retirement at the end of 2021, to help increase vaccination rates in the...
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