Table 3.

Summary of 11 published reports showing the five most prevalent pneumococcal serotypes isolated from pleural effusions

No. of samplesCollection date (yr)Serotype (% of total) by ranking:Sum (%)Location of studyReference
12345
101975–19781 (50)3 (37.5)7F (12.5)XaX100Pennsylvania24
261993–19991 (50.0)14 (15.4)9V (15.4)19F (3.8)18C (3.8)88.5Utah6
1331993–200014 (29.1)1 (24.4)19 (9.0)3 (8.4)6 (8.4)79.3U.S., multiple centers26
241996–20001 (45.8)14 (12.5)6B (8.3)19F (8.3)6A (4.2)79.2Utah7
271997–20011 (53.1)14 (15.6)3 (9.4)XX78.1bUK10
111990–20021 (62.5)4 (25.0)5 (12.5)XX100.0Israel13
352000–200314 (26.3)3 (23.7)1 (21.1)6B (7.9)9V (5.3)84.2Canada17
302002–200419A (26.7)1 (23.3)14 (13.3)3 (10)23F (6.7)100France3
272003–20041 (66.7)4 (11.1)3 (7.4)7F (3.7)9V (3.7)92.6UK12
502001–20051 (34.0)3 (20.0)19A (14.0)19F (6.0)7 (4.0)78.0Utah7
512001–20071 (33.3)3 (27.5)19A (25.5)7F (3.9)17 (2.0)92.2Utah6
  • a “X” indicates the absence of reported serotypes.

  • b Three samples (11.9%) were negative for the 13 serotypes tested.