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.
In US gallons. U.S. gallons are different from imperial gallons. 1 Imperial gallon is equal to 4.54609188 litres and 1 US gallon is equal to 3.78541178 litres. Liters on the o â¦ ther hand are the same everywhere. One liter equals 0.26 U.S. gallon or 0.219 Imperial gallon.o 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.