Monday, July 23, 2012

Cholera Breakout,its Prevention and Control




Today(23.7.2012) it is reported in the News that 70 persons in Chennai are hospitalised with severe diarrhoea, a symptom of Cholera and one person is reported to be dead. It is also reported in the newspaper(The Times of India,Chennai dt.23.7.2012) that the unclean city could face the cholera very soon. It is better to know about the disease and it prevention and control.


What is Cholera Disease?

  • Cholera disease causes a lot of watery diarrhea and vomiting
  • Cholera diarrhea can look like cloudy rice water
  • Cholera can cause death from dehydration (the loss of water and salts from the body) within hours if not treated

*Cholera is an infection in the small intestine caused by the bacterium Vibrio cholerae

The main symptoms are profuse, watery diarrhea and vomiting
Transmission occurs primarily by drinking water or eating food that has been contaminated by the feces of an infected person, including one with no apparent symptoms. The severity of the diarrhea and vomiting can lead to rapid dehydration and electrolyte imbalance, and death in some cases. 


The primary treatment isoral rehydration therapy, typically with oral rehydration solution (ORS), to replace water and electrolytes. If this is not tolerated or does not provide improvement fast enough, intravenous fluids can also be used. 


Antibacterial drugs are beneficial in those with severe disease to shorten its duration and severity. Worldwide, it affects 3–5 million people and causes 100,000–130,000 deaths a year as of 2010. Cholera was one of the earliest infections to be studied by epidemiological methods.



How is Cholera Spread?

  • Cholera germs are found in the feces (poop) of infected people
  • Cholera is spread when feces (poop) from an infected person gets into the water people drink or the food people eat
  • Cholera is not likely to spread directly from one person to another

Prevention and Control

The risk for cholera is very low for people visiting areas with epidemic cholera. When simple precautions are observed, contracting the disease is unlikely.

What to do if you think that you or someone in your family has cholera

  • If you have oral rehydration solution (ORS), start taking it now; it can save your life
  • Go immediately to the nearest health facility. Continue to drink ORS at home and while you travel to get treatment
  • Continue to breastfeed your baby if they have watery diarrhea, even when traveling to get treatment


All people (visitors or residents) in areas where cholera is occurring or has occurred should be aware of the basic cholera facts and observe five basic cholera prevention recommendations.
Five Basic Cholera Prevention Messages
  1. Drink and use safe water*
    • Bottled water with unbroken seals and canned/bottled carbonated beverages are safe to drink and use
    • Use safe water to brush your teeth, wash and prepare food, and to make ice
    • Clean food preparation areas and kitchenware with soap and safe water and let dry completely before reuse
    *Piped water sources, drinks sold in cups or bags, or ice may not be safe and should be boiled or treated with chlorine. 

    To be sure water is safe to drink and use:
    • Boil it or treat it with a chlorine product or household bleach
    • If boiling, bring your water to a complete boil for at least 1 minute
    • To treat your water with chlorine, use one of the locally available treatment products and follow the instructions. For a list of products distributed by country, visit CDC’s Safe Water System website
    • If a chlorine treatment product is not available, you can treat your water with household bleach. Add 8 drops of household bleach for every 1 gallon of water (or 2 drops of household bleach for every 1 liter of water) and wait 30 minutes before drinking
    • Always store your treated water in a clean, covered container
  1. Wash your hands often with soap and safe water*
    • Before you eat or prepare food
    • Before feeding your children
    • After using the latrine or toilet
    • After cleaning your child’s bottom
    • After taking care of someone ill with diarrhea
    * If no soap is available, scrub hands often with ash or sand and rinse with safe water.
  2. Use latrines or bury your feces (poop); do not defecate in any body of water
    • Use latrines or other sanitation systems, like chemical toilets, to dispose of feces
    • Wash hands with soap and safe water after defecating
    • Clean latrines and surfaces contaminated with feces using a solution of 1 part household bleach to 9 parts water
    What if I don’t have a latrine or chemical toilet?
    • Defecate at least 30 meters away from any body of water and then bury your feces
    • Dispose of plastic bags containing feces in latrines, at collection points if available, or bury it in the ground. Do not put plastic bags in chemical toilets
    • Dig new latrines or temporary pit toilets at least a half-meter deep and at least 30 meters away from any body of water
  3. Cook food well (especially seafood), keep it covered, eat it hot, and peel fruits and vegetables*
    • Boil it, Cook it, Peel it, or Leave it
    • Be sure to cook shellfish (like crabs and crayfish) until they are very hot all the way through
    *Avoid raw foods other than fruits and vegetables you have peeled yourself.
  4. Clean up safely—in the kitchen and in places where the family bathes and washes clothes
    • Wash yourself, your children, diapers, and clothes, 30 meters away from drinking water sources.
   Source:http://www.cdc.gov/cholera/prevention.html    

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