A study by researchers working in Brazil shows that antimicrobial photodynamic therapy in which blue light targets annatto colorant is a feasible and effective option for treatment of halitosis in mouth-breathing children.
COVID-19 vaccination before first infection may reduce risk of developing long COVID
Receiving at least one dose of a covid-19 vaccine before the first infection is strongly associated with a reduced risk of developing post-covid-19 condition, commonly
November 23, 2023