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.
With the recent rise in the cost of chemicals, the monthly expense of chemicals will average $50 - $60. There is also the extra cost of your time-putting aside time every week to clean the pool, making trips to your local pool supply store, when you would probably rather be spending time with your family.ith the recent rise in the cost of chemicals, the monthly expense of chemicals will average $50 - $60. There is also the extra cost of your time-putting aside time every week to clean the pool, making trips to your local pool supply store, when you would probably rather be spending time with your family.