Quantcast
Environmental News for a Healthier Planet and Life

Antibiotic-Resistant Bacteria Found in Rio de Janeiro Waterways Ahead of Olympics

Science
Antibiotic-Resistant Bacteria Found in Rio de Janeiro Waterways Ahead of Olympics

Evidence of antibiotic-resistant "super bacteria" has been found at several Olympic sites in Rio de Janeiro, Brazil, including waters that will host the swimming portion of the triathlon and in the lagoon where rowing and canoe athletes will compete this summer.

Sugar Loaf mountain in Rio de Janeiro, Brazil. Photo credit: Halley Pacheco de Oliveira, Wikimedia commons

Two studies have connected five beaches—Copacabana, Ipanema, Leblon, Botafogo and Flamengo—and Rio de Janeiro's Rodrigo de Freitas lagoon to the superbug bacteria, Reuters reported.

Copacabana, which had microbes present in 10 percent of the water samples studied, will be the site of open-water and triathlon swimming events. Flamengo, which had microbes in 90 percent of the water samples, will host sailing competitions. The lagoon, which is seen by scientists as the breeding ground for the bacteria, will host rowing and canoe events, according to Reuters.

Scientists say the super bacteria can cause hard-to-treat urinary, gastrointestinal, pulmonary and bloodstream infections, which contribute to death in up to half of infected patients. Meningitis has also been linked to exposure to the superbug. The Centers for Disease Control and Prevention (CDC) reported antibiotic-resistant infections usually "require prolonged and/or costlier treatments, extend hospital stays, necessitate additional doctor visits and healthcare use and result in greater disability and death."

MCR-1 gene, which created antibiotic-resistant bacteria. Photo credit: CDC

The effect the microbes will have on athletes and people that come in contact with them depends on an individual's immune system. Reuters reported:

Five scientists consulted by Reuters said the immediate risk to people's health when faced with super bacteria infection depends on the state of their immune systems. These bacteria are opportunistic microbes that can enter the body, lie dormant, then attack at a later date when a healthy person may fall ill for another reason.
Super bacteria infect not only humans but also otherwise-harmless bacteria present in the waters, turning them into antibiotic-resistant germs.
Harwood said the super bacteria genes discovered in the Olympic lagoon were probably not harmful if swallowed by themselves: they need to be cocooned inside of a bacterium.
"Those genes are like candy. They are organic molecules and they'll be eaten up by other bacteria, other organisms," Harwood said. "That's where the danger is - if a person then ingests that infected organism - because it will make it through their gastrointestinal tract and potentially make someone ill."

The quality of Rio's water has been just one of many concerns facing the Olympic host city—many athletes were already questioning participating in the olympics due to the Zika virus outbreak. These studies are huge disappointments for everyone involved because part of Rio de Janeiro's 2009 bid for the Olympics included a promise to clean the city's waterways, according to Reuters.

Copacabana beach in Rio de Janeiro, Brazil. Photo credit: Bisonlux, Flickr

Renata Picao, a professor at Rio's federal university and lead researcher of the beach study, told Reuters the contamination of Rio's famous beaches was the result of a lack of basic sanitation in the metropolitan area of 12 million people.

"These bacteria should not be present in these waters," Picao said. "They should not be present in the sea."

The spread of the suberbug bacteria is aided by waste from hospitals and households entering storm drains, rivers and streams crossing the city.

The study involving microbes on Rio's beaches was reviewed in September 2015 at the Interscience Conference on Antimicrobial Agents and Chemotherapy in San Diego, California.

The second study, about Rio's lagoon, was conducted by Brazilian federal government's Oswaldo Cruz Foundation lab. It will be published in July by the American Society of Microbiology.

YOU MIGHT ALSO LIKE:

Climate Change Linked to Spread of Zika Virus

Chile's Salmon Industry Using Record Levels of Antibiotics to Combat Bacterial Outbreak

Lake Erie's Toxic Algae Bloom Forecast for Summer 2016

Scientists Warn That You Could Be Inhaling Chemically-Laden Microplastic Particles

Matthew Micah Wright / The Image Bank / Getty Images

By Deborah Moore, Michael Simon and Darryl Knudsen

There's some good news amidst the grim global pandemic: At long last, the world's largest dam removal is finally happening.

Read More Show Less

EcoWatch Daily Newsletter

Scrap metal is loaded into a shredder at a metal recycling facility on July 17, 2008 in Chicago, Illinois. Scott Olson / Getty Images

Hunger strikers in Chicago are fighting the relocation of a metal shredding facility from a white North Side neighborhood to a predominantly Black and Latinx community on the Southeast Side already plagued by numerous polluting industries.

Read More Show Less

Trending

A new UK study links eating meat with increased risks for heart disease, diabetes and more. nata_zhekova / Getty Images

The World Health Organization has determined that red meat probably causes colorectal cancer in humans and that processed meat is carcinogenic to humans. But are there other health risks of meat consumption?

Read More Show Less
A common cuttlefish like this can pass the "marshmallow test." Hans Hillewaert / CC BY-SA 4.0

Cuttlefish, marine invertebrates related to squids and octopuses, can pass the so-called "marshmallow test," an experiment designed to test whether human children have the self-control to wait for a better reward.

Read More Show Less
Yogyakarta Bird Market, Central Java, Indonesia. Jorge Franganillo / CC BY 2.0

By John R. Platt

The straw-headed bulbul doesn't look like much.

It's less than a foot in length, with subdued brown-and-gold plumage, a black beak and beady red eyes. If you saw one sitting on a branch in front of you, you might not give it a second glance.

Read More Show Less