Acute viral myositis – particular aspects in the epidemiology of respiratory virus diseases in 2013

Results There were 578 clinically diagnosed cases of respiratory virus spread by age: 0-3 years: 40 cases (6.92%); 4-7 years: 81 cases (14.01%); 8-14 years old: 107 cases (18.51%); 15-20 years 38 patients (6.57%); over 20 years in 312 cases (53.97%); acute viral myositis was observed in a total of 22 patients (3.80%). Calendar distribution was as follows: in March, 14 cases (63.63%) compared to 6 cases (27.27%) in February, 1 case (4.54%) in January and 1 case (4.54%) in April 2013. The area of origin was urban in 18 cases (81.81%) and rural in 4 cases (18.19%). Mild clinical forms were common in 20 cases (90.9%), severe forms were determined by the prolonged evolution of the disease and association of neurological complications (polyradiculoneuritis) in 2 cases (9.1%). Positive diagnosis was clinical (myalgia, functional impotence of the lower limb) and laboratory confirmed (muscle enzymes). Evolution was favorable in all cases under treatment: corticosteroids (hydrocortisone hemisuccinate, dexamethasone medrol) and neurotrophic. Two patients received virological diagnosis, but in one of them we isolated influenza type B; this viral strain was isolated in most cases investigated virologically and confirmed with influenza viruses in patients with respiratory virus.