That‘s right. I think mRNA vaccines are more effective.
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• The 1918 flu pandemic provides a good rear view. -renqiulan- ♂ (0 bytes) () 01/05/2023 postreply 15:52:21
• The 1918 flu pandemic provides a good rear view. -renqiulan- ♂ (0 bytes) () 01/05/2023 postreply 15:52:21