Cases of mumps development in outbreak incidence: clinical and epidemiological observation

Objective. To study the clinically significant differential diagnostic signs of mumps.

Materials and methods. Medical records of hospital patients (form № 003/у) with mumps (n = 12) and extraordinary report of epidemiological detection of epidemic mumps focus over the period 27.11.2017 to 02.02.2018 among the members of Hockey Club “MP” were used. Quantitative data are presented as M ± α, where M – mean value, α – standard deviation; indices characterizing qualitative signs were determined in percent (%).

Results. Clinical-laboratory features of mumps during outbreak in conditions of multiyear practice of vaccine prevention are presented. Among the hospitalized patients, inflammation of parotid gland was observed in 100 %, pancreatitis – in 83 %, orchitis – in 25 %. These cases of disease in Russia are interesting in connection with a single registration of clinical cases of infection for the recent years – sporadic level of disease. The cases of disease are presented by clinical and laboratory manifestations of the same type in an organized group of subjects going in for sports, who came from North China.

Conclusions. During mumps outbreak in Perm, the clinical picture was characterized by a unilateral inflammation of the parotid salivary glands followed by bilateral damage and involvement of other glandular organs (pancreas, ovaries). The cause of mumps ictus in the studied territory was the infection, brought to an organized team of the hockey club “MP” against the background of reduced with age concentration of the level of protective antibodies to mumps.