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DIFF Biotech's Innovative Nasal Spray Influenza Vaccine Receives Clinical Trial Approval, Introducing a New Attenuation Pathway
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DIFF Biotech's Innovative Nasal Spray Influenza Vaccine Receives Clinical Trial Approval, Introducing a New Attenuation Pathway
HANGZHOU, China, Feb. 9, 2026 /PRNewswire/ — Zhejiang Difference Biological Technology Co., Ltd. (DIFF Biotech) announced that its proprietary nasal spray influenza attenuated live vaccine, DIFF-flu, has recently received clinical trial approval as a Class 1.2 innovative vaccine from China’s National Medical Products Administration (NMPA). As the first domestically self-developed nasal spray influenza vaccine in […]
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