Nature article from 2005 - Jab against one strain (original COVID) might worsen infection with others (Delta).
This raises the prospect that a vaccine against one strain of SARS virus could prove ineffective against others. Worse, a jab against one strain might even aggravate an infection with SARS virus from civets or another species. "It's obviously a concern," Nabel says.
https://www.nature.com/articles/news050110-3#ref-CR1
Nature article from 2005 - Jab against one strain (original COVID) might worsen infection with others (Delta).
This raises the prospect that a vaccine against one strain of SARS virus could prove ineffective against others. Worse, a jab against one strain might even aggravate an infection with SARS virus from civets or another species. "It's obviously a concern," Nabel says.
https://www.nature.com/articles/news050110-3#ref-CR1
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