Family Forum / Parenting / Children's Health / June 2006

The first reports to the Iowa Department of Public Health (IDPH) of
mumps-like illness occurred in December 2005 at a university in eastern
Iowa, where several students with glandular swelling were tested; two
tested positive for mumps-specific IgM antibodies. In mid-January 2006, an
isolate from an unrelated patient was cultured and identified as mumps
virus at the University Hygienic Laboratory (Iowa's state public health
laboratory). Viral isolates were sent to CDC, and the mumps strain was
identified as genotype G. By mid-February, active surveillance had been
initiated in seven geographic areas, including the campuses of the three
largest universities in Iowa.

Of the 219 cases reported in Iowa, the median patient age was 21 years
(range: 3--85 years), with 48% of patients aged 17--25 years (Figure 2);
30% (34 of 114) were known to be college students. Of the 133 patients
with investigated vaccine history, 87 (65%) had documentation of receiving
2 doses

http://www.cdc.gov/mmwr/preview/mmwrhtml/mm5513a3.htm