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.)
The classic symptoms of pertussis are a paroxysmal cough, inspiratory whoop, and fainting, or vomiting after coughing. The cough from pertussis has been documented to cause subconjunctival hemorrhages, rib fractures, urinary incontinence, hernias, and vertebral artery dissection.
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.