Further reports (no. 3) on flies as carriers of infection.

Date:
1910
Catalogue details

Licence: Public Domain Mark

Credit: Further reports (no. 3) on flies as carriers of infection. Source: Wellcome Collection.

    19/76 page 15
    The results of these experiments are given in the following table :— Table 5.—Showing the results of infection experiments with B. enteritidis (Gaertner), Plates from Time after infection. Intestinal Flies allowed to contents. Feces. walk over plates. 24 hours + (11) _ 0 (3) 48, 0 (17) 0 TAGh) 3 days 0 (15) 0 + (5) 2, + (22) 0 + (5) Su: ,, + (9) = a(S} oe + (12) a5 Tree) ne + (8) + (3) ee 0 (7) ca 0 (6) + indicates that B. enteritidis was isolated and proved by cultures on suitable media, including sugars; 0 that the suspicious colonies isolated did not turn out to be B. enteritidis and — that no cultures were made. Some of the plates were completely over- grown with colon-like organisms. The figures in brackets indicate the number of flies used in each experiment. On the 7th day six flies (I-VI., Table 6) were captured and killed. The legs and wings were removed with sterile forceps and plated separately. After flaming, the bodies were dissected and the crops and intestines isolated, separate cultures being made from the contents of each. The head was also removed and separately cultivated. On the 8th day five flies (VII.-XI.) were treated in the same way. The results of these experiments are given in the following table :— Table 6.— Showing the results of further experiments with B. enteritides. Cultures from ao we Legs. Wings. — y- Head.| Crop | Intes- : P | tines. iF 2 Es a ae: Se 5. Grieiar 2. ss ae 010);—i—|—!—| 0 |-0 0 0 — /|7 BIS» 0';01:0/1;0/;0;0;0)10 + ++ — ||m: : Peo oo} 010104 01.0| +l ++ hot chop eS IV 0;';010;0/;0/0;010 + + + Nae aos it after infection. Ver. +/0/0)};010/;0|—| 0 0 — ial ‘a ages 0';01:010/0/;0]01] 0 0 — oe tty VIL ee 0 0 ) 0 0 0 0 0 FE 0 ) j [ Wate ee bo 0 1.0.0.) 0:}.040. 10 0 ao 0 Flies dissected Pee U0 O.4.0 | 0 }.0°) 0.) 0 0 0 0 on the 8th day es (rodeo, Oror_org 0 0 0 after infection. 4 he Ceo. FOr Od FOr O71 O |-8 0 0 0 |J ++ indicates that numerous colonies of B, enteritidis were found.
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