For citations:
Sakhabetdinov B.A., Sakhabetdinova K.N., Ibragimova A.R., Shpaner V.I., Safiullina N.D. Decreased herd immunity, measles and pertussis outbreaks in 2023. Pacific Medical Journal. 2024;(4):86-90. (In Russ.) https://doi.org/10.34215/1609-1175-2024-4-86-90