Table 2.
Pneumonia and ILI incidence rates and SP carriage rates by platoon.
| Platoon (# of companies included)a | Living setting | Pneumonia attack rateb | Combined ILI + pneumonia attack ratec | Pneumococcal carriage among controlsd | Sp5 carriage among controlse | Ratio of pneumonia attack rates and Sp5 carriage rates | Other serotypes (non-Sp5) carried |
|---|---|---|---|---|---|---|---|
| A (3/3) | 5–8 per room | 4/86 (4.7%) | 8/86 (9.3%) | 5/14 (35.7%) | 3/14 (21.4%) | 1:4.6 | 23F (1), 9V (1), 6B (1) |
| C (3/4) | 7–8 per room | 2/97 (2.1%) | 6/97 (6.2%) | 10/17 (58.8%) | 2/17 (11.8%) | 1:5.7 | 10B (3), 15B/C (2), 3 (2), non-typable (1) |
| D (2/3) | 8 per room | 1/49 (2%) | 4/49 (8.1%) | 4/22 (18.2%) | 1/22 (4.5%) | 1:2.2 | 16F (1), non-typable (2) |
| H (3/3) | 10–12 per tent | 5/91 (5.5%) | 7/91 (7.7%) | 34/63 (54%) | 22/63 (36.5%) | 1:6.6 | 3 (2), 15B/C (1), 15C (1), 17F (1), 18C (1), 23F(3), 35B (2) |
| 4 platoons Summary | 12/323 (3.7%) | 13/323 (7.7%) | 53/116 (45.7%) | 29/116 (25%) | 1:6.7 | ||
| Overall-all recruits | 15/596 (2.5%) | 34/596 (5.7%) | 55/124 (44.4%) | 30/124 (24.2%) | 1:7.8 |
a
Selected 4 of 6 platoon in which 5 or more recruits were sampled, and selected companies with at least 1 cases of pneumonia or ILI.
b
Number of pneumonia cases/total platoon recruits (%).
c
Number of ILI and pneumonia cases/total platoon recruits (%).
d
Number of pneumococcal carriers/total controls tested (%).
e
Number of Sp5 carriers/total controls tested (%).