Studies upon plague in ground squirrels (in four parts) ... : II. A plague-like disease of rodents / by George W. McCoy.

  • McCoy, George W.
Date:
1911
Catalogue details

Licence: Public Domain Mark

Credit: Studies upon plague in ground squirrels (in four parts) ... : II. A plague-like disease of rodents / by George W. McCoy. Source: Wellcome Collection.

    6/98 page 4
    L Part II.—Notes on induced plague in ground squirrels—Continued. The lesions of experimental plague—Continued. Page. Subacute plague... .....-..+4-- . > eos cat a 26 Reaction at site... .-. 5... /)\ See. es 26 The spleen..02.-.-2..1.---.- <M ok ake ea 26 The liver... . +. -.-)- «+++ + +2) so a 27 The hings. 2.2.5 ..---<-~)- 7 RR oes os 27 Residual buboes.........----..: | ARERR 2), 22 ts 27 Distribution of bacilli. ..... 2. \. RRR ae =. | AY SUMMALY: |. seb ees 2 = + Se eo moo 28 Development of lesions....... . ......: «~<RRNERIs es 22 2 se + a ee 28 SuMMary...2.-¢-eees--.-.---- i So. Se 29 Influence-of size of dose....0:0.... .)- Ree... 29 Summary ..i...-..0.4.0. 5.2... Re i 2 30 Source’ of cultures... 20.25. 2... -... + ee oe so 30 Summary... 1.......-.-.22.-+- - -aeee Sc Sl Virulence of Bacillus pestis after experimental passage through ground aquitrels.j$. 20 5.--28.% .--...-- 2) 9 \ Ree Pe Rt 31 Summary. ...--..----.,--- +. - >) Ree 2 + 34 Part IIJ.—Immunity of certain squirrels to plague infection. sae: :\)-eeneeaeee 35-40 Against squirrel strain ‘of B. pestis... 0aRae oo...) 2. 35 Apainst rat strain jof B. pestis....... .2geeeeeowee os... - a ~ 36 Against strain of B. pestis of foreign origimiees.-.:.----.-- - ae eee 37 Influence of dose of culture. ........: RRRaipiees uals... 38 Discussion ..22.2.2552......2---... - ne: 39 SuMMary sss... se.eees 0b -- +s... es 2 40 Part IV.—Insect transmission in relation to plague among ground squirrels. ... 41-51 Plague bacilli in ecto-parasites.......JQ3Ree.2 > e- - - . ae 4] Staimed smears..-......5....... ees. - 4] Inoculation of animals. ...... ... Qa ae 5. ees 42 Technique. ..2......:..... . SRR eee or 42 »Bacilli in fleas... ...... (3B @eieee ee 7 43 Bacilliin flea‘feces.—. . ogee en 2 43 Bacilli in Lee: 2... LCE bard oe sll ens - rrr 44 Unsuccessful attempts at insect transmission....-......-....-.--.----- 46 Flea transmission. 2.2... 2.042... .. Wee eS.) 2 46 From squirrel to squirrel by means of squirrel fleas.................-- 47 From squirrel to guinea pigs by means of squirrel fleas....-.......--- 47-48 From squirrel to white rats by means of squirrel fleas............--.-. 48 From white rats to squirrels by means of rat fleas.........-.....-..-. 49 From guinea pig to guinea pigs by means of squirrel fleas............. 48-49 From white rat to white rats by means of squirrel fleas...............- 50 SUMMAry, cso ycaekee cee... . . 5) A Plague-like Disease of Rodents: . ..... SAP eee 2): 53-72 Geographical distribution .: ....... <2 2 53 Gross lesions#/2).5..)-40..¢......... eee Re ae 53 In ground squirrels naturally infegtedgaeeeee 02/22. See 53 Bubo.o.....0..5.-.-.--. .. ee: ae 53 Spleess Be ndiele cle Uap be we =. ajc) en 2) 53 LAVerss socket sek... 1 ees. ed RS Eee 54 Lunges) eee eek. 2... Se 54 In inoculated squirrels. |... ... . : 2 eee ee ae COS ean 54 : t
    No text description is available for this image
    No text description is available for this image
    No text description is available for this image