│ │ │ │ │ of this ward │ │ │ │Streptococcus│ „ │ │ │ │pneumonia: │ 10–24 │37 │6 │16.2 │10–17 1 case │ „ 10–31 │27 │5 │18.5 │10–21 1 case │ „ 11–7 │9 │3 │33.3 │10–29 1 case │Case developing 10–29 │ │ │ │ │ was removed from │ │ │ │ │ section a few days │ │ │ │ │ before onset of │ │ │ │ │ pneumonia 11–12 │7 │1 │14.3 │Otitis media:│ „ │ │ │ │11–1 1 case │ „ ───────┼────────┼────────┼─────────┼─────────────┼───────────────────── Ward 60│ │ │ │ │Wards 59 and 60 │ │ │ │ │ served by same ward │ │ │ │ │ staff. │ │ │ │Streptococcus│ „ │ │ │ │pneumonia: │ 10–24 │22 │1 │4.5 │10–21 1 case │Ward staff cultured: │ │ │ │ │ 11–5 0 positive │ │ │ │ │ 11–12 1 positive │ │ │ │ │ 11–19 0 positive 10–31 │17 │2 │11.7 │Otitis media:│ „ 11–7 │8 │1 │12.5 │10–31 1 case │ „ 11–12 │6 │1 │16.6 │ │ „ ───────┴────────┴────────┴─────────┴─────────────┴───────────────────── When the streptococcus complications are traced back to the wards in which the streptococcus infection of the throat was acquired, it is found that with the exception of Case 141 (already cited) all the streptococcus pneumonias arose from two double wards. Wards 41 and 42 furnished 4 cases at times when streptococcus was rampant in them and 3 of these cases arose within a period of a few days. Wards 59 and 60 furnished 4 cases, very closely associated. In 3 cases the streptococcus infection was acquired in a section of Ward 59 containing 16 beds. These patients were in beds, of which the positions are represented by numbers 2, 5, and 7, along one side of the ward. The fourth instance of pneumonia appeared at the same time in Ward 60, which was attended by the same ward personnel, but no other connection can be established between this case and the other three.