A cohort study of approximately 1 million girls found no evidence supporting associations between exposure to quadrivalent human papillomavirus vaccine and autoimmune, neurological, and venous thromboembolic adverse events.
There are five products available through the province's flu program -- two of the five products are quadrivalent, meaning they can safeguard against four strains -- and three are trivalent.
The calcination of bastnsite had driven off the carbon dioxide content, leaving an oxide-fluoride, in which the cerium content had become oxidized to the less basic quadrivalent state.
