(3) Through the broken skin.
2. COMMON DISEASE-PRODUCING BACTERIA
(1) Those entering the respiratory organs.—Mumps, scarlet fever, whooping-cough, diphtheria, measles, pneumonia
(2) Those entering the digestive tract.—Typhoid, cholera, tuberculosis
(3) Those coming through cuts, etc.—Skin diseases like ringworm, blood poisoning, lockjaw (tetanus).
Sink and sewer connection
T—Trap. W—Waste Pipe. H.D.—House drain. S.—Sewer.
If housekeepers do not exercise care, these disease-producing bacteria may enter the home, and finding there all the conditions which they require, they will multiply, and become a menace to the family.