“This is the first international discovery of clear evidence for a third compact object in a binary black hole merger event. It reveals that the binary black holes in GW190814 may not have formed in ...

Individual vaccines for each virus aren't available in the U.S., and there is no published scientific evidence that shows a benefit to separating the combined vaccine.

The acting director of the US Centers for Disease Control and Prevention called for vaccine makers to develop separate shots ...

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