Comment on Huijghebaert et al. Does Trypsin Oral Spray (Viruprotect ® /ColdZyme ® ) Protect against COVID-19 and Common Colds or Induce Mutation? Caveats in Medical Device Regulations in the European Union. Int. J. Environ. Res. Public Health 2021, 18 , 5066.

Published in: International journal of environmental research and public health (2022)

I read with interest the recent paper of Huijghebaert et al. published recently in this journal [...].

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