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.
A quart is one-fourth of a gallon, which is easy to remember because quart is part of the word quarter.. A gallon is equal to 128 fluid ounces, since 32 multiplied by 4 is 128. A gallon is also equal to 8 pints or 16 cups. One-half gallon or 2 quarts is equal to 64 ounces, which is the same as eight 8-ounce glasses, the often recommended amount of water a person should drink in a day.