Table 2

Results obtained with original buccal swab samples collected from 296 confirmed mumps cases were tested rRT-PCR using the mumps SH gene as the target, stratified by timing of buccal swab collection and MMR vaccination status

No. of doses of MMR(n = samples)No. (%) of buccal samples that were rRT-PCR positive in MMR group/no. collected:Total no. of samples positive in MMR group (%)
0–2 days after onseta≥3 days after onsetb
0 doses, n = 135/9 (55)2/4 (50)7/13 (54)
1 dose, n = 2516/22 (73)1/3 (33)17/25 (68)
2 doses, n = 15587/130 (67)5/25 (20)92/155 (59)
Unknown, n = 10348/76 (63)5/27 (18)53/103 (51)
Total156/237 (66)13/59 (22)169/296 (57)
  • a Median, 1.0 day; average, 0.8 days.

  • b Median, 4.0 days; average, 4.8 days.