While in Africa, he suffered a bout of paratyphoid fever. Paratyphoid B is more frequent in Europe. His discovery of the infectious agent of paratyphoid C had far-reaching consequences for differential diagnosis. Paratyphoid and typhoid fever are types of enteric fever. Humans and, occasionally, domestic animals are the carriers of paratyphoid fever. During this time, he contracted paratyphoid fever. Typhoid fever is a type of enteric fever, along with paratyphoid fever. Both typhoid and paratyphoid are of similar severity. Specific types of "Salmonella" can result in typhoid fever or paratyphoid fever. It has also been used to treat paratyphoid fever and shigellosis. Churchill went from Munich to Blenheim and, soon afterwards, he was afflicted with paratyphoid fever. However, on 16 September, like many others, he succumbed to dysentery and paratyphoid fever. Adrien de Gerlache died in Brussels in 1934, aged 68, from paratyphoid. While no vaccine is available specifically for paratyphoid, the typhoid vaccine may provide some benefit. Paratyphoid affects about six million people a year.