The recommendation for caution is indeed the final line of the study’s conclusion, as published on the above link, but the lead author of the study, Prof Chien-Te (Kent) Tseng (here), told Reuters by email that the animals in the study did not die.
He said that immunised mice “generated strong and highly protective antibody responses which fully protect immunized mice against lethal infection”.
The recommendation for caution is indeed the final line of the study’s conclusion, as published on the above link, but the lead author of the study, Prof Chien-Te (Kent) Tseng (here), told Reuters by email that the animals in the study did not die.
He said that immunised mice “generated strong and highly protective antibody responses which fully protect immunized mice against lethal infection”.