too early to conclude.
所有跟帖:
• Flu vaccine is about 60% effective, yet still provides some --worldance-- ♀ (179 bytes) () 08/16/2020 postreply 20:34:17
• I meant to say that Corona vaccines may not be as effective as --worldance-- ♀ (96 bytes) () 08/16/2020 postreply 21:26:17