Here we go again: Mystery pneumonia kills three and infects nine in Argentina

Order2Chaos · Sep 1, 2022

https://www.telegraph.co.uk/global-...ry-pneumonia-kills-two-infects-six-argentina/

Mystery pneumonia kills three and infects nine in Argentina
Doctors rule out Covid, influenza and hantavirus as culprits but continue to run more tests

BySarah Newey, GLOBAL HEALTH SECURITY CORRESPONDENT1 September 2022 • 6:11pm
Three people have died and five are in hospital after developing a “pneumonia of unknown origin”, Argentinian health authorities have announced.

According to the Ministry of Health in Tucumán – a small region in the northwest of the country some 800 miles from the capital, Buenos Aires – nine people in the sameprivate clinic unit have contracted mystery pneumonia.

Authorities are concerned about the deadly outbreak because the usual suspects – including Covid, influenza and hantavirus – have been ruled out. Five of the six affected, and both of those who so far died, are also health care workers, suggesting an infectious agent may be involved.

“What these patients have in common is the severe respiratory condition with bilateral pneumonia and compromise in [x-ray] images very similar to Covid, but that is ruled out,” Luis Medina Ruiz, Tucumán’s minister of health, said on Wednesday, according to local media.

He added that the six patients have had a series of tests for “Covid, cold, influenza of both types A + and B +, Hantavirus and 25 other germs” but no virus has yet been identified.

Samples have been sent to the prestigious Malbran Institute in Buenos Aires for further analysis. Contacts of the first patients are being tracked and the healthcare centre has been isolated.

The first six patients developed symptoms between August 18 and 22. On Thursday, health authorities said a futher three people had been infected, but did not say when their symptoms developed.

‘This shows our vulnerability to pathogens’
Experts are also analysing the water, and air conditioning units to determine whether the cause is toxic or environmental – for instance, whether legionella bacteria may have accumulated in the air conditioning duct.

Although the cases are reminiscent of the early days of the Covid-19 pandemic, when authorities were racing to determine the cause of an unexplained pneumonia in Wuhan, health experts cautioned that more information is needed “before ringing the alarm bell”.

The European Centre for Disease Control’s epidemic intelligence team has been tracking the cluster of cases since Tuesday. The World Health Organization is also aware of the cases.

“It’s obviously concerning but we still need key information on transmission and hopefully [on the] underlying cause,” said Prof Devi Sridhar, chair of global health at Edinburgh University and author of ‘Preventable’.

“This shows our collective vulnerability to dangerous pathogens. An outbreak in any part of the world – if not quickly contained – can spread rapidly given air travel and trade.”

Prof Jonathan Ball, a professor of virology at the University of Nottingham, added that this could be a rare event caused by a respiratory virus that experts do not routinely test for in pneumonia patients.

“Diagnostic labs, even in the UK, don't test for all respiratory viruses – just the most common ones or most significant ones. It was only recently that many labs bothered looking for coronaviruses,” he said.

Prof Ball added that genetic sequencing should determine whether this is a rare event from a known pathogen, or something new.

But he suggested that because measures to curb Covid also disrupted the spread of other pathogens, experts should be on alert for more unusual symptoms.

“[This] might not be new illnesses – just a cluster of rare events from known illnesses,” he said. “Expect more until we settle back into the normal seasonal ebb and flow of respiratory viruses.”

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Here we go again: Mystery pneumonia kills three and infects nine in Argentina

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Here we go again: Mystery pneumonia kills three and infects nine in Argentina

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