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Kordofan. Small outbreaks of small pox occurred in western Kordofan, but they were soon dealt with.

Blue Nile. The outbreak in the Blue Nile Province, which started at the end of January, was complicated by two factors :—

(i) The cheapness and ease of motor transport for natives favours the rapid dissemination of infectious disease.

(ii) The presence of a large number of immigrants, westerners from Wadai who are unvaccinatecl, have no sheikhs, and no fixed dwelling places, constitutes an element in the population which it is very difficult to watch or control.

The epidemic was dealt with very vigorously, and by the end of April was at an end. A total of 34 cases occurred in 28 villages. This small number of cases occurring in such a dense population speaks well for the vaccination of the local population. A total of 82,308 vaccinations were carried out in this province during the year, of which 67,170 were successful. The limitation of the epidemic must be largely attributed to the commendable promptitude with which the omdas and sheikhs found arid reported all suspicious cases.

WHOOPING COUGH,

Unimportant sporadic outbreaks of whooping cough occurred in various parts of the country.