TORONTO, Ontario (CTV Network) — After the National Advisory Committee on Immunization recently doubled down on its recommendation that mRNA vaccines are “preferred” over their viral vector ...

BEND, Ore. (KTVZ) -- In the Three Rivers area and beyond, they're trying to slap away a major nuisance. The Four Rivers Vector Control District warned of a big hatch of mosquitoes and has been out ...

The viral vector-based COVID-19 vaccines developed by AstraZeneca and Johnson & Johnson have been linked to an extremely rare and potentially life-threatening blood-clotting syndrome called ...

The viral vector-based COVID-19 vaccines developed by AstraZeneca and Johnson & Johnson have been linked to an extremely rare and potentially life-threatening blood-clotting syndrome called ...