The bacterium Bordetella pertussis is the primary whooping cough cause. There are no other causes, and the infection follows no distinct seasonal pattern. People may become infected with the bacteria by breathing in tiny droplets released into the air by an infected person's cough or sneeze.
There are approximately 1,892.7 milliliters in 1 half-gallon of volume. That works out to 3,785.4 milliliters per gallon, 1.892 liters per half-gallon and 3.785 liters per gallon.
To convert US gallons to liters, multiply gallons by 3.79; However, if you are asking about the British or Imperial gallon: To convert British gallons to liters, multiply gallons by 4.54; to convert liters to British gallons, multiply liters by 0.22; hence, 4.54 liters make a British gallon. 1 gallon [US, liquid] = 3.78541178 liters. 1 gallon [US, liquid] = 4.000 US quarts exactly.