SEPTIC SORE THROAT (a) Infective Agent.—Streptococcus hemolyticus.
(b) Source of Infection.—Typical or atypical human cases or carriers. Cows may be healthy carriers, becoming infected from man.
(c) Exit of Infective Agent.—In the nasopharyngeal secretions of human beings, or in the milk of a carrier cow.
(d) Route of Transmission.—Direct or indirect human con tact; consumption of infected cow's milk, or by contaminated cow's milk.
(e) Incubation Period.—From one to three days.
(f) Period of Communicability.—Indefinite and uncertain and can only be ascertained by a bacteriological examination.
(g) Entrance of Infective Agent into the Body.---Through the mouth or nose.
(h) Methods of Control.—Infected Individual.—r. Diagnosis: By clinical manifestations which should be confirmed by cul tures from the throat and tonsils.
2. Isolation: During the clinical course of the disease and convalescence, especially by exclusion of the patient from the production or handling of milk or milk products.
3. Artificial Immunization: None.
4. Quarantine: None.
5. Concurrent Disinfection: Of discharges from the nose and throat and articles soiled therewith.
6. Terminal Disinfection: None.
General Measures.—i. Exclusion of a suspected milk supply from public sale or use until it has been pasteurized. The ex clusion of the milk of an infected cow is possible in small herds if the infected animal is located by the bacteriological exami nation of all in the herd.
2. Pasteurization of all milk retailed to the public.
3. Education of the public in the principles of personal hy giene, especially in the avoidance of the use of common towels, and common drinking and eating utensils.