Algorithms in the diagnosis and management of exotic diseases. XIII. Malaria.
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Biomedical subjects
Publications and source records attributed to T Butler.
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A study of 741 Indonesian patients with fever was carried out in order to determine what serious febrile illnesses are prevalent in Jakarta. All patients were hospitalized primarily because of fever and were studied by bacteriological and serological methods. Bacteremia due to Salmonella typhi (150 cases), S. enteritidis (36 cases), or both (2 cases) was common in both children and adults. One S. enteritidis isolate was chloramphenicol resistant. Serological evidence of Salmonella infection was found in 130 additional cases without bacteremia. Serological evidence of arbovirus infection (94 cases) was common in children. Malaria was found in 12 adults, most of whom were probably infected outside Jakarta. Little serological evidence was found for rickettsial, leptospiral, Brucella, Toxoplasma gondii or a number of other infections. Clinical signs and symptoms in the febrile patients studed were generally nonspecific, and laboratory results reported were very helpful in establishing more accurate diagnoses.
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Despite the progress that has been made in the treatment of cholera, mortality rates from this disease remain high in rural areas where intravenous fluids are not readily available. The authors have therefore conducted controlled studies into the efficacy of a simpler form of maintenance therapy-the administration of glucose-containing electrolyte solutions by mouth. The results obtained from the study of 51 adult patients (36 with cholera and 15 with severe non-cholera diarrhoea) indicate that oral fluids are adequate for maintenance therapy in cholera and severe diarrhoeal disease, and that there is no significant increase in the duration of diarrhoea or in the stool volume in patients receiving such therapy.The addition of a non-specific adsorbent, charcoal, to the fluid led to a significant increase in the volume of diarrhoeal stools and to prolongation of vibrio excretion; its use is therefore not recommended. The use of oral replacement solutions should result in improvement of cholera treatment of adults in rural areas and in a reduction in the cost of treatment.
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This paper considers firstly the epidemiology of plague in the 1980s. The largest number of cases occurred in Tanzania. Most cases were in children and young adults; in the USA the male:female ratio was about 2:1. Plague had a seasonal distribution. Almost all cases arose from bites of infected rodent fleas, and Rattus spp. were the most important reservoir hosts. Virulence is linked with the presence of a 45 MDa plasmid. The predominant clinical form of plague is bubonic, followed by septicaemic, meningitic and pneumonic. For treatment, streptomycin is the antibiotic of choice, with tetracycline and chloramphenicol as alternatives. Treatment given on the first 1-2 d of illness is highly effective, and resistance is not a problem. Rodent control, insecticide application, and avoidance of contact with rodents and their fleas remain the prime means of control. Plague vaccine is not in general use.