│ │ │ │ coli. │ │ ───────┼────────────────┼──────────┼────────┼────────┼────────┼──────── 487 │ + │ │ │B. inf. │B. inf. │ St. h. │ │ │ │ St. h. │ │ ───────┼────────────────┼──────────┼────────┼────────┼────────┼──────── 488 │ │ │ │ St. h. │ St. h. │ St. h. │ │ │ │Pn. IIa.│ │ ───────┼────────────────┼──────────┼────────┼────────┼────────┼──────── 489 │ │ │ │B. inf. │Pn. IV. │ 0 │ │ │ │Pn. IV. │B. inf. │ ───────┼────────────────┼──────────┼────────┼────────┼────────┼──────── 494 │ │ │ │ St. h. │ St. h. │ St. h. │ │ │ │B. inf. │B. inf. │ ───────┼────────────────┼──────────┼────────┼────────┼────────┼──────── 498 │ │ │ │ St. v. │ St. v. │ St. v. │ │ │ │ │ Staph. │ │ │ │ │ │ aur. │ │ │ │ │ │ Staph. │ │ │ │ │ │ alb. │ ───────┼────────────────┼──────────┼────────┼────────┼────────┼──────── 499 │ │ + │ │ St. h. │ 0 │ St. h. │ │ │ │B. inf. │ │ ───────┼────────────────┼──────────┼────────┼────────┼────────┼──────── 504 │ │ │ │ St. h. │ St. h. │ St. h. │ │ │ │B. inf. │ │ │ │ │ │ Staph. │ │ ───────┼────────────────┼──────────┼────────┼────────┼────────┼──────── 506 │ │ │ │Pn. IV. │Pn. IV. │Pn. IV. │ │ │ │B. inf. │ Staph. │ │ │ │ │ Staph. │ aur. │ │ │ │ │aur. M. │ │ │ │ │ │ cat. │ │ ───────┴────────────────┴──────────┴────────┴────────┴────────┴──────── In successive columns the table gives the autopsy number, race, and length of military service. These factors have had an important influence upon the incidence of influenza and pneumonia and have been discussed in a preliminary report.[79] The duration of illness (4th column of table), counted from the date of onset of symptoms of influenza or in some instances, when the earliest symptoms were those of pneumonia, from onset of pneumonia, can usually be determined accurately. The duration of pneumonia (5th column of table) is much more uncertain, because its determination dates from the first recognition of the physical signs of pneumonia.