Thailand to begin human trials on Covid-19 nasal spray vaccines by year end

BANGKOK, Aug 14 (Xinhua): Thailand plans to start human trials on two Covid-19 vaccines via nasal spray by the end of this year after promising results of experiment in mice, a Thai official has said.

The adenovirus vector-based and influenza virus vector-based Covid-19 vaccines were developed by Thailand's National Centre for Genetic Engineering and Biotechnology, said Anan Jongkaewwattana, director of Veterinary Health Innovation and Management Research Group under the centre