Sloth Virus Spreads to Europe: Oropouche Fever Emerges as Global Health Threat | Canada News Media
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Sloth Virus Spreads to Europe: Oropouche Fever Emerges as Global Health Threat

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An insect-transmitted virus that can infect sloths, primates, and birds is spreading at an “unprecedented” rate, according to global health officials. Oropouche fever, a potentially fatal zoonotic disease, is now emerging in parts of the world where it has never been detected before, including Europe. The World Health Organization (WHO) has reported that the virus, transmitted by tiny flies called midges and mosquitoes, is spreading beyond its traditional stronghold in Central and South America.

Oropouche fever, which is part of the same family of diseases as Zika and dengue fever, has traditionally circulated in Central and South America. However, recent research published on August 8 in The Lancet indicates that the virus has also been detected in new locations, including Cuba, Italy, and Spain.

The research paper noted that “Arboviral infections have hit South America heavily in the past decade…. In addition, the region is now facing the re-emergence of another little-known arbovirus, Oropouche virus, on an unprecedented scale.” As of August 1, 2024, there have been 8,078 confirmed cases in Bolivia, Brazil, Colombia, and Peru, compared to just 832 cases reported in 2023. The first deaths linked to Oropouche fever were reported in late July, involving two young women in Brazil with no underlying medical conditions.

In response to the virus’s spread, both the Pan American Health Organization (PAHO) and the European Centre for Disease Prevention and Control (ECDC) have issued warnings. In June and July, Europe reported its first 19 cases of Oropouche virus disease, with Spain (12 cases), Italy (five cases), and Germany (two cases) being affected. The majority of these cases were linked to travel to Cuba, with one case connected to Brazil.

Dr. Isaac Bogoch, a Toronto-based infectious diseases specialist, expressed concern over the virus’s potential spread to Canada, especially given the rise in cases in popular travel destinations like Cuba. “There’s a giant knowledge gap,” Bogoch said, highlighting that many healthcare professionals and the general public may be unaware of the virus, which could lead to underreporting.

Oropouche fever is a zoonotic disease first identified among forest workers in Trinidad in 1955, and later in a sloth in Brazil in 1960. Since then, more than 500,000 cases have been reported in the Americas, though the true extent of the virus’s spread may be underestimated. The virus is primarily transmitted to humans through the bite of an infected midge or mosquito, with no direct human-to-human transmission documented so far.

Symptoms of Oropouche fever can resemble those of dengue fever and Zika virus, including fever, chills, nausea, vomiting, headache, joint pain, muscle pain, sensitivity to light, and pain behind the eyes. In rare cases, the virus can lead to severe complications such as aseptic meningitis, which involves inflammation of the membranes surrounding the brain.

The spread of Oropouche fever has been linked to climate change, urbanization, and deforestation. A study from 2017 examined an outbreak in Peru and found a significant connection to deforestation, which may displace the virus’s animal hosts and increase the likelihood of midges feeding on humans. Extreme weather conditions such as heavy rainfall and flooding, which create ideal breeding conditions for midges, have also been identified as contributing factors.

Currently, there is no vaccine or specific treatment for Oropouche fever. Prevention is the best defense, with the Centers for Disease Control and Prevention (CDC) recommending the use of insect repellent, window and door screens, and fans to keep midges and mosquitoes at bay. Since midges are smaller than mosquitoes, traditional mosquito nets may not be effective.

“Good insect repellent works extraordinarily well,” Bogoch advised, recommending repellents containing 30% DEET or 20% picaridin for the best protection.

The Canadian government has also issued travel precautions, advising those traveling to regions with Oropouche fever outbreaks to take extra care, particularly pregnant women, due to the potential risk of transmission from mother to fetus.

As the virus continues to spread, health officials urge travelers and healthcare providers to remain vigilant and report any symptoms that could be related to Oropouche fever. The situation highlights the growing threat of infectious diseases in a rapidly changing global climate.

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Whooping cough is at a decade-high level in US

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MILWAUKEE (AP) — Whooping cough is at its highest level in a decade for this time of year, U.S. health officials reported Thursday.

There have been 18,506 cases of whooping cough reported so far, the Centers for Disease Control and Prevention said. That’s the most at this point in the year since 2014, when cases topped 21,800.

The increase is not unexpected — whooping cough peaks every three to five years, health experts said. And the numbers indicate a return to levels before the coronavirus pandemic, when whooping cough and other contagious illnesses plummeted.

Still, the tally has some state health officials concerned, including those in Wisconsin, where there have been about 1,000 cases so far this year, compared to a total of 51 last year.

Nationwide, CDC has reported that kindergarten vaccination rates dipped last year and vaccine exemptions are at an all-time high. Thursday, it released state figures, showing that about 86% of kindergartners in Wisconsin got the whooping cough vaccine, compared to more than 92% nationally.

Whooping cough, also called pertussis, usually starts out like a cold, with a runny nose and other common symptoms, before turning into a prolonged cough. It is treated with antibiotics. Whooping cough used to be very common until a vaccine was introduced in the 1950s, which is now part of routine childhood vaccinations. It is in a shot along with tetanus and diphtheria vaccines. The combo shot is recommended for adults every 10 years.

“They used to call it the 100-day cough because it literally lasts for 100 days,” said Joyce Knestrick, a family nurse practitioner in Wheeling, West Virginia.

Whooping cough is usually seen mostly in infants and young children, who can develop serious complications. That’s why the vaccine is recommended during pregnancy, to pass along protection to the newborn, and for those who spend a lot of time with infants.

But public health workers say outbreaks this year are hitting older kids and teens. In Pennsylvania, most outbreaks have been in middle school, high school and college settings, an official said. Nearly all the cases in Douglas County, Nebraska, are schoolkids and teens, said Justin Frederick, deputy director of the health department.

That includes his own teenage daughter.

“It’s a horrible disease. She still wakes up — after being treated with her antibiotics — in a panic because she’s coughing so much she can’t breathe,” he said.

It’s important to get tested and treated with antibiotics early, said Dr. Kris Bryant, who specializes in pediatric infectious diseases at Norton Children’s in Louisville, Kentucky. People exposed to the bacteria can also take antibiotics to stop the spread.

“Pertussis is worth preventing,” Bryant said. “The good news is that we have safe and effective vaccines.”

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AP data journalist Kasturi Pananjady contributed to this report.

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The Associated Press Health and Science Department receives support from the Robert Wood Johnson Foundation. The AP is solely responsible for all content.

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Scientists show how sperm and egg come together like a key in a lock

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How a sperm and egg fuse together has long been a mystery.

New research by scientists in Austria provides tantalizing clues, showing fertilization works like a lock and key across the animal kingdom, from fish to people.

“We discovered this mechanism that’s really fundamental across all vertebrates as far as we can tell,” said co-author Andrea Pauli at the Research Institute of Molecular Pathology in Vienna.

The team found that three proteins on the sperm join to form a sort of key that unlocks the egg, allowing the sperm to attach. Their findings, drawn from studies in zebrafish, mice, and human cells, show how this process has persisted over millions of years of evolution. Results were published Thursday in the journal Cell.

Scientists had previously known about two proteins, one on the surface of the sperm and another on the egg’s membrane. Working with international collaborators, Pauli’s lab used Google DeepMind’s artificial intelligence tool AlphaFold — whose developers were awarded a Nobel Prize earlier this month — to help them identify a new protein that allows the first molecular connection between sperm and egg. They also demonstrated how it functions in living things.

It wasn’t previously known how the proteins “worked together as a team in order to allow sperm and egg to recognize each other,” Pauli said.

Scientists still don’t know how the sperm actually gets inside the egg after it attaches and hope to delve into that next.

Eventually, Pauli said, such work could help other scientists understand infertility better or develop new birth control methods.

The work provides targets for the development of male contraceptives in particular, said David Greenstein, a genetics and cell biology expert at the University of Minnesota who was not involved in the study.

The latest study “also underscores the importance of this year’s Nobel Prize in chemistry,” he said in an email.

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The Associated Press Health and Science Department receives support from the Howard Hughes Medical Institute’s Science and Educational Media Group. The AP is solely responsible for all content.

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Older patients, non-English speakers more likely to be harmed in hospital: report

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Patients who are older, don’t speak English, and don’t have a high school education are more likely to experience harm during a hospital stay in Canada, according to new research.

The Canadian Institute for Health Information measured preventableharmful events from 2023 to 2024, such as bed sores and medication errors,experienced by patients who received acute care in hospital.

The research published Thursday shows patients who don’t speak English or French are 30 per cent more likely to experience harm. Patients without a high school education are 20 per cent more likely to endure harm compared to those with higher education levels.

The report also found that patients 85 and older are five times more likely to experience harm during a hospital stay compared to those under 20.

“The goal of this report is to get folks thinking about equity as being a key dimension of the patient safety effort within a hospital,” says Dana Riley, an author of the report and a program lead on CIHI’s population health team.

When a health-care provider and a patient don’t speak the same language, that can result in the administration of a wrong test or procedure, research shows. Similarly, Riley says a lower level of education is associated with a lower level of health literacy, which can result in increased vulnerability to communication errors.

“It’s fairly costly to the patient and it’s costly to the system,” says Riley, noting the average hospital stay for a patient who experiences harm is four times more expensive than the cost of a hospital stay without a harmful event – $42,558 compared to $9,072.

“I think there are a variety of different reasons why we might start to think about patient safety, think about equity, as key interconnected dimensions of health-care quality,” says Riley.

The analysis doesn’t include data on racialized patients because Riley says pan-Canadian data was not available for their research. Data from Quebec and some mental health patients was also excluded due to differences in data collection.

Efforts to reduce patient injuries at one Ontario hospital network appears to have resulted in less harm. Patient falls at Mackenzie Health causing injury are down 40 per cent, pressure injuries have decreased 51 per cent, and central line-associated bloodstream infections, such as IV therapy, have been reduced 34 per cent.

The hospital created a “zero harm” plan in 2019 to reduce errors after a hospital survey revealed low safety scores. They integrated principles used in aviation and nuclear industries, which prioritize safety in complex high-risk environments.

“The premise is first driven by a cultural shift where people feel comfortable actually calling out these events,” says Mackenzie Health President and Chief Executive Officer Altaf Stationwala.

They introduced harm reduction training and daily meetings to discuss risks in the hospital. Mackenzie partnered with virtual interpreters that speak 240 languages and understand medical jargon. Geriatric care nurses serve the nearly 70 per cent of patients over the age of 75, and staff are encouraged to communicate as frequently as possible, and in plain language, says Stationwala.

“What we do in health care is we take control away from patients and families, and what we know is we need to empower patients and families and that ultimately results in better health care.”

This report by The Canadian Press was first published Oct. 17, 2024.

Canadian Press health coverage receives support through a partnership with the Canadian Medical Association. CP is solely responsible for this content.

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