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.
Standard finish is smoothed and painted. The cost of an average in-ground Gunite-concrete swimming pool varies by location, shape, size, and decorative quality of the finish and surroundings. The typical 12' x 24' rectangular (288 sq.ft. of water surface area) concrete pool will cost around $72 per square foot.Typical extras raise that cost to about $103 per square foot. 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.