Quantcast
Environmental News for a Healthier Planet and Life

Help Support EcoWatch

Mysterious Lung Disease in China

Health + Wellness
A girl wears a face mask while walking past a building shrouded in severe air pollution on Nov. 7, 2017 in Harbin, China. Tao Zhang / Getty Images

By Gudrun Heise

With an unknown lung disease apparently spreading in China, could there be a new outbreak akin to SARS? Not necessarily. Authorities have yet to identify it. And many respiratory illnesses are caused by viruses.


SARS

SARS stands for "Severe Acute Respiratory Syndrome." It is one of the most dangerous, recent diseases, which is often fatal. The first cases were diagnosed in 2002 in China and it spread from there. Experts say that was due in part to the rate of modern tourism and travel in general. More than 8,000 people contracted SARS across 30 countries, and about 1,000 people died. But until that outbreak SARS was an unknown illness. Studies showed that it was a Coronavirus. Researchers think the virus spread from animals to humans.

MERS

The Middle East Respiratory Syndrome (MERS) was discovered in 2012. As with SARS, MERS is a type of Coronavirus. A Coronavirus can infect animals and humans. In humans, MERS mainly affects the respiratory system. The initial symptoms are similar to those of influenza — coughing, fever and shortness of breath. Later, patients can develop a lung infection and even kidney failure. But the illness can present itself and develop in different ways, depending on the patient, and can sometimes be fatal, as in 2015 in South Korea and China.

MERS is most common on the Arabian Peninsula, from where it gets its name. Studies suggest that it's often been spread from camels to humans. There is no vaccine against MERS or any other form of treatment.

Avian Influenza

Commonly called "bird flu," avian influenza is caused by the H5N2 virus, but there are variations of it. The "H" stands for hemagglutinin, a protein which helps the virus dock onto cells in a respiratory system. The "N" stands for neuraminidase. The virus needs a form of neuraminidase to reproduce itself and spread in an infected body. Bird flu often spreads in wild geese, but it can also spread on common poultry farms. In those cases, most of the affected birds die from the virus. The infection is caused by a range of viruses, including the influenza A virus.

Most types of bird flu do not affect humans. The only types that have so far been shown to spread from birds to humans are H5N1 and H7N9. Those two types can cause serious infections in humans and can be spread by infected birds. It has not been shown to spread from human to human. Humans can become infected through close contact with infected birds.

But all these viruses change and mutate constantly and that makes them even more dangerous.

Legionnaires' Disease

Legionnaires' disease is a severe form of lung infection. Symptoms include coughing, shivering, headache and high fever. In very bad cases, it can cause a patient to become confused or disorientated.

It is said the disease is spread via air conditioning systems, which distribute the bacteria. It is not transmitted from human to human.

Legionellosis was first discovered at a meeting of war veterans, the "American Legion," hence its name. The meeting was held in Philadelphia, where a number of the attendees became sick with an unknown lung illness. Two weeks after the meeting, further cases were diagnosed. In total 221 men were infected and 34 of them died. It was later determined that a bacteria known as legionella pneumophila was found in the air conditioning of a hotel and is said to have caused the outbreak.

But unhygienic water systems, such as showers in bathrooms, can also transmit the disease. Legionnaires' disease is found around the world. It is especially dangerous for people with weak immune systems. It is treated with antibiotics.

Reposted with permission from DW.

EcoWatch Daily Newsletter

A "trash tsunami" has washed ashore on the beaches of Honduras, endangering both wildlife and the local economy.

Read More Show Less
Long-finned pilot whales are seen during a 1998 stranding in Marion Bay in Tasmania, Australia. Auscape / Universal Images Group / Getty Images

More long-finned pilot whales were found stranded today on beaches in Tasmania, Australia. About 500 whales have become stranded, including at least 380 that have died, the AP reported. It is the largest mass stranding in Australia's recorded history.

Read More Show Less
Sponsored
A protest in solidarity with the Wetʼsuwetʼen's anti-pipeline struggle, at Canada House in Trafalgar Square on March 1, 2020 in London, England. More than 200 environmental groups had their Facebook accounts suspended days before an online solidarity protest. Ollie Millington / Getty Images

Facebook suspended more than 200 accounts belonging to environmental and Indigenous groups Saturday, casting doubt on the company's stated commitments to addressing the climate crisis.

Read More Show Less
The Västra Hamnen neighborhood in Malmö, Sweden, runs on renewable energy. Tomas Ottosson / Wikimedia Commons / CC by 3.0

By Harry Kretchmer

By 2030, almost a third of all the energy consumed in the European Union must come from renewable sources, according to binding targets agreed in 2018. Sweden is helping lead the way.

Read More Show Less

Trending

An Extinction Rebellion protester outside the Bank of England on Oct. 14, 2019 in London, England. John Keeble / Getty Images

By Jessica Corbett

In another win for climate campaigners, leaders of 12 major cities around the world — collectively home to about 36 million people — committed Tuesday to divesting from fossil fuel companies and investing in a green, just recovery from the ongoing coronavirus pandemic.

Read More Show Less