are likely to sioffer. /"This might be a seasonal coincidence 

 since it would appear that in European areas of Kenya the kennel 

 tick is more common as an indoor pest than as an outdoor one. At 

 least, an interesting research problem on the overall subject is 

 suggested. 7 



Only a single report of the kennel tick attacking people in 

 the upland Kilimani area near Nairobi reached the Kenya Medical 

 Research Laboratory during 1932. At the same time in coastal 

 Mombasa, houses that were heavily infested by R. s. sangtiineus 

 yielded a number of cases of boutomieuse fever" ("Tropical typhus") 

 following bites on the patients* body and legs, some restilting in 

 primary lesions, and all definitely associated with this tick 

 species (Kauntze 193A). In Cameroons, Rageau (1953B) reported 

 feeding by a kennel tick in the ear of a young girl. Specimens 

 sent to Theiler (correspondence) from Beitbridge, Southern Rhode- 

 sia (on the Limpopo River just beyond Messina) were said to have 

 been biting people and causing great discomfort. 



The few present records for parasitism of man by this tick 

 in the Sudan are noted in the Equatoria and Upper Nile Province 

 records above. Further, my associates and I have been bitten by 

 R. s. sanguineus at Njoro, Kenya; several times in the wilds of 

 "sou"Ehe astern Egypt, on the Mediterranean littoral, and in the 

 oasis of Sinai; not infrequently in the mountains and lowlands 

 of the Yemen; and once each in Aden Protectorate, French Somali- 

 land, Elritrea, and Turkey. These incidents, while not common 

 during many months in the field, bear consideration. We have 

 never known of an Egyptian being bitten in Cairo or in the Nile 

 Valley. After several years of canvassing the American community 

 in Cairo, many of whose members have this tick in their home, 

 only three children have been reported to be infested. 



From field experience in Africa and the Near East, the im- 

 pression has been gained that this tick attacks man more fre- 

 quently in hot, dry areas than elsewhere, and especially that 

 it does so in those situations where it is a common pest of 

 cattle, sheep, and goats, but where domestic dogs and moderate- 

 ly large sized wild animals are not numerous. 



Philip (1952) has remarked that during his fifteen months 

 in West Africa he did not hear of a single dog owner being at- 

 tacked by this tick. 



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