IiiSlir J J

Examined not earlier than 5-10 days following the fall of temperature. Bile is taken from a fasting patient using a duodenal tube. A, B and C biles are taken in separate sterile test tubes. Serologic studies are used to confirm the diagnosis. Widal's test is used along with passive (indirect) haemagglutination test with erythrocytic diagnosticum (O, H and Vi antigens). Widal's test is performed with 2-3 ml of blood taken from the ulnar vein of the patient on the 8-9th day of the disease....

Prevention of Infectious Diseases akd IVkasuics to Control luuu

Prevention and control of infectious diseases include the following (1) mass-scale measures aimed at improvement of public health, prevention and spread of infectious diseases (2) medical measures aimed at reduction of infectious morbidity and eradication of some diseases (3) health education and involvement of population in prevention or restriction of the spread of infectious diseases (4) prevention of import of infectious diseases from other countries. Improvement of peoples' well-being,...

The Course of Infectious Diseases

Diseases of man due to pathogenic microorganisms are studied by a special branch of medicine. In the middle of the 19th century these diseases were given the name of infectious, from Latin inficere, which means to stain or to taint with morbid matter, i.e., to contaminate. As distinct from other human pathologies, infectious diseases are characterized by specificity of the living microorganism causing the disease, its transmissibility from a diseased human or animal to healthy people, epidemic...

Classification of Infectious Diseases

In the 19th century, infectious diseases were classed as contagious transmissible from person to person , miasmatic transmitted through air , and contagious-miasmatic. Late in the 19th century, in view of advances made in bacteriology, the diseases were classified according to their aetiology. These classifications could not satisfy clinicians or epidemiologists since diseases with different pat gt ciic- sis, clinical course and epidemiologic characteristics were united in one group....

The Subject Matter of Epidemiology

The word 'epidemiology' has been used since the time when most of the infectious diseases were epidemic. Today, when infectious morbidity has considerably decreased, the concept of epidemiology includes the study of objective laws of aetiology, distribution and control of infectious diseases in a human community, and also elaboration of methods to prevent and control these diseases. The following definition of the term 'epidemiology' was formulated at the International Symposium of...