Table 3

Reported Reasons for Vaccine and Immune Globulin Shortagesa

Reason for ShortageNo. (%) ShortagesMedian (IQR) Duration of Shortage, in Months
Discontinued product3 (5)NA
Manufacturing problem30 (51)22.8 (16.8–31.1)
Supply-and-demand issues4 (7)16.4 (5.8–22.1)
Otherc4 (7)6.1 (4.5–15.5)
Unknown18 (31)7.8 (5.1–14.8)
  • a IQR = interquartile range, NA = not applicable.

  • b χ2 = 13.199 with 3 d.f. (p = 0.004), Kruskal-Wallis test.

  • c Natural disaster (n = 2), shortage of raw materials (n = 1), and product recall (n = 1).