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Now Proven: Drinking iced tea could risk your heath

 2017-04-15 08:20:16.0

Now Proven: Drinking iced tea could risk your heath

Tahlka News Bureau
New Delhi: In a study, it has been now proven that regular consumption of iced tea instead of boiling drinking water may increase the risk of cholera in endemic countries. After over a decade of declining cholera incidence, Vietnam faced an increase in cases of the diarrhea disease during 2007-2010, researchers said.

Risk factors for contracting cholera in Ben Tre province of Vietnam include drinking iced tea or unboiled water and having a water source near a toilet.Cholera transmission is closely linked to inadequate access to clean water and is often spread through contaminated drinking water.

In the new study, Thuong Vu Nguyen from the Pasteur Institute Ho Chi Minh City in Vietnam and colleagues interviewed 60 people who were confirmed to have been infected with cholera during the 2010 outbreak in Ben Tre. Information about each person's eating and drinking behaviors and living environment was recorded.

The researchers also collected samples of nearby river water, drinking water, wastewater samples, and local seafood to test for Vibrio cholerae, the bacteria which spreads the disease.

The researchers found that drinking iced tea, not boiling drinking water, having a main water source near a toilet, living with other who have diarrhea and having little or no education were all associated with an increased risk of cholera, while drinking stored rainwater, eating cooked seafood or steamed vegetables were protective against the disease.

As much as 22% of people with cholera reported drinking iced tea in a week prior to their disease, whereas only 3% of it reported to have had iced tea in the week, before they were interviewed.

Patients with cholera were also more likely to always put ice in their water and to use sedimented river water for drinking, bathing, cooking, and brushing their teeth.

More work is needed to determine why iced tea boosts the risk of cholera, but the researchers hypothesise that the bacteria may be found in ice, which is often bought from street vendors.

"This present study has important implications for Vietnam's cholera responses," researchers said.

"Along with traditional approaches that focus on enhancement of safe water, sanitation, and food safety, combined with periodic provision of oral cholera vaccines, a water quality monitoring system at ice-making plants should be established," they said.


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