Search Results for: zoonotic

  1. What Are Zoonotic Diseases?

    If you guessed that ZOOnotic diseases have something to do with animals, you are right.  According to the Centers for Disease Control and Prevention (CDC), a zoonotic disease is one that can spread between animals and humans under natural conditions—such as in homes, on farms, and at county fairs and petting zoos—and can be caused by viruses, bacteria, parasites and fungi.  Ironically, animals that can transmit zoonotic pathogens (disease-causing germs) to people often have no symptoms of disease and simply act as carriers.

    Zoonotic, Emerging, and Waterborne Diseases

    Zoonotic diseases are also very common:  At least six out of every 10 infectious diseases in humans are thought to be spread from animals.  Wildlife serves as a “reservoir” for many diseases common to domestic animals and humans.  Moreover, zoonotic pathogens are closely tied to so-called emerging (or reemerging) infectious diseases, and up to 75% of emerging pathogens are thought to … READ MORE >>

  2. Avoiding Salmonella from Backyard Poultry

    BackyardPoultryBackyard poultry farming is an increasingly popular trend in urban and suburban areas that permit it, giving families a fun way to raise food while learning to care for animals. Assuming roosters are banned in the neighborhood for their earsplitting “cock-a-doodle-doo,” what could be the downside of raising poultry in the backyard? The answer is illness. Unfortunately, outbreaks of Salmonella infection linked to backyard poultry are on the rise. We have described this type of disease in a previous article as a “zoonotic disease,” which is one that can spread between animals and humans under natural conditions, e.g., in your own backyard.

    According to the Centers for Disease Control and Prevention (CDC), Salmonella bacteria reside in poultry droppings and on the feathers, feet and beaks of poultry, even though the chicks and ducklings may appear clean and healthy. Any human contact, whether through handling poultry directly or … READ MORE >>

  3. Indicators of Drinking Water Quality

    Providing safe drinking water requires a multi-barrier approach that includes protecting source water from contamination, physically and/or chemically treating (including chlorine disinfection) the raw surface- and groundwater, and storing and delivering the treated water in a manner that prevents re-contamination. Every day, more than a billion glasses of tap water are consumed from over 150,000 public drinking water systems across the US, and it is often taken for granted that the water is safe and wholesome.1


    Many types of pathogenic (disease-causing) germs can be found in contaminated drinking water, including bacteria, viruses and parasites like Cryptosporidium—the cause of the largest documented waterborne disease outbreak in recent US history.


  4. A Cautionary Tale of Untreated Groundwater, Campylobacter, and New Zealand’s Largest Drinking Water Outbreak

    3-D computer-generated image of Campylobacter based upon scanning electron micrographic imagery

    3-D computer-generated image of Campylobacter based upon scanning electron micrographic imagery

    Courtesy of CDC/James Archer


    Havelock North is a suburb of the City of Hastings on the North Island of New Zealand with 14,000 residents.  By the end of August 2016, over one-third of the residents of this entire town had been sickened by drinking water contaminated with Campylobacter bacteria, the most common source of foodborne illness in New Zealand.1 How did a wealthy country with national drinking water standards come to experience the largest documented drinking water outbreak in its history?

    The Outbreak

    Like most waterborne disease outbreaks, Havelock North’s began when a few residents stayed home from work assuming they had food poisoning or a seasonal illness.  The trickle soon grew to dozens, then hundreds, and ultimately thousands of residents suffering from debilitating cramps, headaches and nausea.  “By Friday August 12 schools reported hundreds of … READ MORE >>

  5. Crypto Outbreaks in Aquatic Facilities

    Left to right: Cryptosporidium in the oocyst stage; emerging from its resistant shell; fully emerged
    Photo courtesy of the Centers for Disease Control & Prevention


    Over 250 people in central Ohio and over 100 in Arizona have been sickened in summer outbreaks of cryptosporidiosis, a diarrheal illness caused by the microscopic parasite Cryptosporidium, or “Crypto.”   These parasites are found throughout the US and abroad, and settle in the intestines of infected humans and animals, making Crypto one of the most well-known zoonotic diseases.  According to the Centers for Disease Control & Prevention (CDC), millions can be released in the feces of an infected person.  Only 10 to 30 are needed, however, to cause infection in a healthy person, according to Yoder and Beach (2010).1

    Crypto spreads in aquatic facilities when people inadvertently swallow water contaminated with the feces of infected individuals. Understanding Crypto and how to … READ MORE >>

  6. Meet the Water Quality & Health Council

    The Water Quality & Health Council: From left to right, Steve Hubbs, Barbara Soule, Linda Golodner, Bruce Bernard, Fred Reiff, Bob Vincent, Ralph Morris, Joan Rose and Chris Wiant

    Who We Are:  The WQ&HC is a multidisciplinary group of independent experts sponsored by the American Chemistry Council’s Chlorine Chemistry Division.

    The group’s knowledge and experience span science and medicine, public health policy, consumer advocacy, environmental engineering, risk assessment and emergency response.  In 2016, the American Chemistry Council and the WQ&HC will celebrate the 25th anniversary of the WQ&HC’s founding.

    Our Mission:  The WQ&HC strives to protect public health by promoting knowledge of evidence-based practices and policies that enhance water quality and health. It separates science fact from fallacy and informs industry, health professionals, policy makers, and the public on a wide range of topics.

    The Chlorine Connection:  Chlorine chemistry is used to help control infectious diseases that can be spread … READ MORE >>

  7. Bob (Robert) G. Vincent

    Bob_VincentBob Vincent has been an Environmental Administrator in the Florida Department of Health since 2003. He manages Department of Health programs for Healthy Marine Beaches, Safe Drinking Water, Water Well Surveillance and Public Pools and Bathing Places.

    Mr. Vincent has 30 years of experience with the Florida Department of Health at local health departments, regional offices and headquarters in administration and environmental health field work in areas including:  public swimming pools and bathing places, drinking water, food sanitation, onsite sewage, group care, zoonotic vectors, contaminated water well surveillance, epidemiology, and emergency planning and response.

    Mr. Vincent is an active member of the National Environmental Health Association, and holds many positions on advisory boards and technical committees, including the US Environmental Protection Agency’s National Drinking Water Advisory Council, the Centers for Disease Control and Prevention’s Steering Committee for the Model Aquatic Health Code, the Association of State and Territorial Health Official’s … READ MORE >>

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