A “relative resurgence’’ in reported cases of mumps in 1986-87 can be attributed to delays in routine immunization against the disease, a new study concludes.
The study, appearing in this month’s issue of the American Journal of Diseases of Children, says that nearly 7,800 cases of mumps were reported in 1986, 2.5 times the number of cases reported the previous year. In 1987, it adds, the number of reported cases jumped to more than 12,000.