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.
What is pertussis (whooping cough)? Pertussis (also called whooping cough) is a very contagious disease caused by a bacteria called Bordetella pertussis . It can cause severe coughing fits which can affect breathing. After fits of many coughs, a person with pertussis often needs to take a deep breath resulting in a âwhoopingâ sound.