A new study conducted by the CDC that followed about 4,000 health care personnel, police, firefighters, and other essential workers found that under real-life conditions, both the Pfizer and Moderna vaccines are 90% effective after your second dose. Good news that is significant because these were all front-line workers who are more likely to be exposed to the virus. Lena Sun, health reporter at The Washington Post, joins us for more on vaccine effectiveness.




Next, the long awaited report into the origins of Covid-19 has arrived, but unfortunately it still leaves key questions unanswered. The most likely scenario is that the virus jumped from bats, to a still unknown intermediary animal, and then to humans. The findings may still be called into question as the investigators had little power to conduct an impartial investigation without Chinese influence. Drew Hinshaw, reporter at the WSJ, joins us for what we know about the WHO report.




Finally, there is a mysterious disease killing young black bears in California. Bears normally shy away from humans, and one of the symptoms is a new found fearlessness. The disease causes the bears brains to become inflamed and could be related to some new viruses found in bears with these symptoms. Ryan Sabalow, reporter at the Sacramento Bee, joins us for the curious illness affecting bears.

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