Enter the size of the slab you want to build in square feet. The calculator will indicate the number of 60 lb bags you will need to build a 4 inch or 6 inch slab. (all yields are approximate and do not allow for uneven substrate, waste, etc.)
Pertussis (also known as whooping cough or 100-day cough) is a highly contagious bacterial disease.[10][1] Initially, symptoms are usually similar to those of the common cold with a runny nose, fever, and mild cough. This is then followed by weeks of severe coughing fits.
Early Whooping Cough Symptoms After becoming infected with whooping cough, it takes about seven to 10 days for signs and symptoms to appear, and sometimes longer. Early symptoms can last for one to two weeks and usually include the following: 1  Runny nose. 2  Low-grade fever. 3  Mild, occasional cough. 4  A pause in breathing called apnea.