TABULATION OF DISEASES AND INSECT TRANSMISSION 477 



Disease 



Chiggers fred bugs) (acarine 

 dermatosis). 

 See also Gonone 



Causative organism 



Cholera, Asiatic 



Allotrombidium fuliginosum 

 Leptus akamusbi 



aDiericanum 

 irritans 

 Metatrombidium poriceps 

 Microtrombidium pusillum 



" , tialsabuate 



Trombidium autumnalis 

 batatas 

 bolosericeum 

 inopinatum 

 " striaticeps 



Spirillum cholerse. 



Insect transmitter 



Same as preceding 

 column. 



Cholera, fowl 



Cholera, hog 



Bacterium choleree gallin- Blatta orientalis. 

 arum. 



Calliphora vomito- 



ria. 

 Eristalis tenax. 

 Musca domestica. 



Periplaneta ameri- 

 cana. 



Filterable virus. 



Musca domestica. 

 Fannia canicuiaris. 



Colitii 



Conjunctivitis 



Conjunctivitis, phlyctenular 



Deerfly fever 



(See plague, rodent/ 



Dengue 



Bacillus coli. 



Bacillus of Koch-Weeks. 



Various bacteria. 



Filterable virus. 



Stomoxys calcitrans 



Calliphora vomitoria 



Lucilia caesar 

 Musca domestica 

 Sarcophaga carnaria 



Blatta orientalis. 



Microneurum funi- 

 cola. 



Fediculus bumanus 



Aedes argenteus 

 Culex quinquefas- 

 ciatus. 



Method of insect 

 transmissions 



Direct attack 

 in skin. 



Taken up from 

 stools by lar- 

 val and adult 

 flies, deposit- 

 ed in feces or 

 on food. 



May be carried 

 in the roach 

 body for at 

 least 60 min- 

 utes and de- 

 posited in vi- 

 able condi- 

 tion in its fe- 

 ces. 



Passes through 

 i n t e s t i nal 

 tract intact. 

 Infection by 

 contamina- 

 tion. 



Taken up by fly 

 from animal 

 manure Was 

 experimental- 

 ly transmit- 

 ted by con- 

 tact with 

 wounds and 

 by inocula- 

 t i o n of 

 crushed flies. 



Experimentally 

 transmitted 

 by inocu- 

 lation of 

 crushed in- 

 fected flies. 



Flies or larvse 

 take up from 

 stools. De- 

 posited in 

 their feces on 

 food. 



Passes through 

 ■ n t e s t inal 

 tract intact. 

 Infection by 

 contamina- 

 tion. 



Insect takes up 

 from eye and 

 carries to eye 



Deposited in 

 louse feces, 

 carried to eye 

 by bands. 



Nature of 

 insect r6Ie 



Parasite. 



Mechanical 

 carrier. 



Mfchanical 

 carrier. 



Mechanical 

 carrier. 



Mechanical 

 carrier. 



Transmitted 

 by mosquito 

 bite. 



Mechanical 

 carrier (?) 



Mechanical 

 carrier. 



Mechanical 

 carrier. 



Mechanical 

 carrier. 



Mechanical 

 carrier. 



Intermediate 

 host. 



