84 



BouiLLiEz (M.), Contribution k l'6tude et a la repartition de quelques 

 Affections parasitaires au Moyen Chari (Afrique Centrale). 

 [Contribution to the study and distribution of certain parasitic 

 affections in the Middle Shari.] — Bull. Soc. Path. Exot., Paris, 

 ix, no. 3, March 1916, pp. 143-167, 1 map. 



This paper continues a preliminary report [see this Review, Ser. B, 

 iii, p. 29] on the distribution of sleeping sickness in the centre of 

 French Equatorial Africa and contains information as to further foci 

 of the disease. The movements of native traders and their people 

 across the Kamerun frontier having been largely diverted in con- 

 sequence of the war, it was often difficult to determine whether the 

 cases seen were really indigenous or imported, and it is pointed out that 

 this diversion of travel routes may possibly lead to the infection of 

 Glossina in areas in which the flies are at present free from trypano- 

 somes. Up to a very short time ago, G. palpalis had not been found 

 in this area and it was only in September of 1915 that a few specimens 

 were discovered on the banks of the Ko Kiver, though no case of disease 

 was seen in any of the neighbouring villages, while no G. palpalis was 

 found in or near the villages on the neighbouring river Sara, in which 

 sleeping sickness is rife. The disease is locaUsed, though G. mcrsitans 

 is abundant everywhere and G. tachinoides is almost as common, 

 especially along the water courses ; the author therefore thinks that 

 these species may be eliminated as carriers. As a useful prophylactic 

 measure, it is suggested that a pass should be issued to travellers, 

 certifying, among other things, their freedom or otherwise from 

 trypanosomes, date of examination, treatment, etc. Traffic should 

 be restricted to certain routes on which there should be examination 

 posts. Details are given of numerous inoculation experiments with 

 various species of trypanosomes. Examination of the blood of geckos 

 and of several species of lizards failed to yield any bodies having a 

 possible relation to leishmaniasis. The malaria index of the area is 

 as high as 80 per cent., but there is only one really common 

 mosquito, viz :• — Anopheles (Myzomyia) funestus. 



BouET (Gr,). Existence d'un petit foyer de trypanosomiase humaine h 

 la Basse Cote d'lvoire. [Existence of a small centre of human 

 trypanosomiasis in the Lower Ivory Coast.] — Bull. Soc. Path. 

 Exot., Paris, ix, no. 3, March 1916, pp. 168-186. 



Investigations made in ] 906-08 tended to show that sleeping sickness 

 is not endemic in the lower Ivory Coast, but since that time several 

 undoubtedly locally acquired cases have been recorded, the neighbour- 

 hood of Bingerville being regarded as a centre. Domestic animals 

 which were examined failed to yield Trypanosoma gambiense, though 

 T. dimorphon was found and T. cazalboui occurred in animals brought 

 from the north ; imported animals die from infection by T. dimorphon. 

 Of 458 flies examined none was found infected with T. gambiense, 

 though T. dimorphon was present in 3 '7 per cent. ; a single case of 

 Glossina infected with T. cazalboui was discovered in 450 ffies, probably 

 contracted locally from an imported animal. In consequence of the 

 general conditions and the humidity of the whole area, G. palpalis is 

 not localised and the chance of the infection of this fly with T. gambiense 

 is regarded as very small, though possible, and proper precautions 

 should be taken to destroy its haunts near inhabited centres. 



