Causes. Pertussis, a respiratory illness commonly known as whooping cough, is a very contagious disease caused by a type of bacteria called Bordetella pertussis.hile pertussis vaccines are the most effective tool we have to prevent this disease, no vaccine is 100% effective. If pertussis is circulating in the community, there is a chance that a fully vaccinated person, of any age, can catch this very contagious disease.
1 Do-it-yourself pool cleaning runs $20-$100 per month for chemicals during the summer after initial purchase of pool tools including a vacuum head and hose from $50, and a maintenance kit with a wall brush, leaf skimmer, test kits and telescopic pole for around $60. Regular filter cleaning costs around $60-$65. 2  Power vacuuming is intense cleaning for a neglected pool and runs $55-$124 per hour. 3  Pools that are properly covered during the winter will require an opening service that prepares the pool for summer use.
The typical example is a rectangular swimming pool that is 12' wide x 24' long with variable depth from 3' minimum to 5' or 6' maximum. The pool has an internal surface area of 618 square feet and water surface area of 288 square feet. Chemicals-between the chlorine, pH testing strips, and other materials, the average pool owner spends roughly $80 per month for above-ground swimming pools and $95 per month for in-ground swimming pools.