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What is Chikungunya, the virus spreading through China?

What is Chikungunya, the virus spreading through China?

Yahoo7 hours ago
Chikungunya is transmitted by mosquitoes and usually causes mild symptoms, but severe joint pain can persist for months. There is no specific treatment, though vaccines exist for travelers. The outbreak has led to measures like distributing mosquito nets and spraying insecticide. Heavy rains and high temperatures have worsened the situation. (AP Production by Luke Garratt)
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FDA flags problems with two Boston Scientific heart devices tied to injuries and deaths
FDA flags problems with two Boston Scientific heart devices tied to injuries and deaths

The Hill

time2 hours ago

  • The Hill

FDA flags problems with two Boston Scientific heart devices tied to injuries and deaths

WASHINGTON (AP) — U.S. health regulators are warning doctors and patients about safety issues with two separate Boston Scientific heart devices recently linked to injuries and deaths. The Food and Drug Administration issued two alerts Wednesday about electrical problems tied to the company's heart-zapping defibrillator systems and a separate issue with a heart implant used to reduce stroke risk. The agency said the company's Endotak Reliance defibrillator wires can become calcified, leading to failures in delivering life-saving shocks to the heart, according to the FDA. Defibrillators are surgically placed in the upper chest, where they monitor irregular heartbeats and use electrical shocks to jolt the heart back to normal. As of July 24, Boston Scientific has reported 386 serious injuries and 16 deaths associated with this issue, the agency said. Ten of the deaths were judged to be due to the device failing to function properly, the company said in an email. Four were linked to attempts to surgically remove the devices from patients and two others were deemed unrelated to the implants. Boston Scientific's wires were distributed between 2002 and 2021 and are no longer available, the company noted in its letter to doctors. Some patients will need to have the devices replaced, though physicians should weigh the risks of the removal procedure. In a separate notice, the FDA said Boston Scientific recently updated instructions for implanting its Watchman device, which closes a portion of the heart's left atrium to reduce the risk of stroke. In a letter to physicians, the company noted that there is an increased risk of blockages in the bloodstream depending on the level of anesthesia for patients undergoing the initial implantation procedure. Watchman is an alternative to long-term treatment with blood thinners for patients at increased risk of stroke. As of July 30, the company has reported 120 serious injuries and 17 deaths related to the issue, the FDA said. A company investigation concluded that the safety issue 'is not associated with the design or manufacture of any component of the Watchman system. Heart devices, including defibrillators and other implants, are Boston Scientific's largest business, making up two-thirds of its $5 billion in revenue for the most recent quarter. Shares of Boston Scientific Corp. fell nearly 1.8 percent Wednesday to close at $102.95 in trading. ___ The Associated Press Health and Science Department receives support from the Howard Hughes Medical Institute's Department of Science Education and the Robert Wood Johnson Foundation. The AP is solely responsible for all content.

Pakistan's deadly monsoon floods were worsened by global warming, study finds
Pakistan's deadly monsoon floods were worsened by global warming, study finds

Associated Press

time2 hours ago

  • Associated Press

Pakistan's deadly monsoon floods were worsened by global warming, study finds

ISLAMABAD, Pakistan (AP) — Heavy rainfall that triggered floods in Pakistan in recent weeks, killing hundreds of people, was worsened by human-caused climate change, according to a new study. The study by World Weather Attribution, a group of international scientists who study global warming's role in extreme weather, found that rainfall from June 24 to July 23 in the South Asian nation was 10% to 15% heavier because of climate change, leading to many building collapses in urban and rural Pakistan. Pakistan's government has reported at least 300 deaths and 1,600 damaged houses due to the floods, heavy rain and other weather since June 26. Saqib Hassan, a 50-year-old businessman in northern Pakistan, said flooding on July 22 destroyed his home and 18 of his relatives' homes, along with their dairy farms. His farm animals were washed away, resulting in heavy losses — likely 100 million rupees ($360,000) — for him and his family. Last-minute announcements from a nearby mosque were the only warning they got to evacuate their homes in the small town of Sarwarabad and get to higher ground. 'We are homeless now. Our houses have been destroyed. All the government has given us is food rations worth 50,000 rupees ($177) and seven tents, where we've been living for the past two weeks,' Hassan told The Associated Press over the phone. Heavy rains cause series of disasters High temperatures and intense precipitation worsened by global warming have accelerated the pace of recent extreme weather events faster than climate experts expected, said Islamabad-based climate scientist Jakob Steiner, who was not part of the WWA study. 'In the last few weeks, we have been scrambling to look at the number of events, not just in Pakistan, but in the South Asian region that have baffled us,' he said. 'Many events we projected to happen in 2050 have happened in 2025, as temperatures this summer, yet again, have been far above the average,' said Steiner, a geoscientist with the University of Graz, Austria, who studies water resources and associated risks in mountain regions. Heavy monsoon rains have resulted in a series of disasters that have battered South Asia, especially the Himalayan mountains, which span across five countries, in the last few months. Overflowing glacial lakes resulted in flooding that washed away a key bridge connecting Nepal and China, along with several hydropower dams in July. Earlier this week, a village in northern India was hit by floods and landslides, killing at least four people and leaving hundreds missing. The authors of the WWA study, which was released early Thursday, said that the rainfall they analyzed in Pakistan shows that climate change is making floods more dangerous. Climate scientists have found that a warmer atmosphere holds more moisture, which can make rain more intense. 'Every tenth of a degree of warming will lead to heavier monsoon rainfall, highlighting why a rapid transition from fossil fuels to renewable energy is so urgent,' said Mariam Zachariah, a researcher at the Centre for Environmental Policy, Imperial College London and lead author of the WWA study. Extreme weather's impact on Pakistan Even though Pakistan is responsible for less than 1% of planet-heating gases in the atmosphere, research shows that it incurs an outsized amount of damage from extreme weather. Pakistan witnessed its most devastating monsoon season in 2022, with floods that killed more than 1,700 people and caused an estimated $40 billion in damage. According to the United Nations, global funds set up to deal with loss and damages because of climate change or funds set up to adapt to climate change are falling well short of the amounts needed to help countries like Pakistan deal with climate impacts. The U.N. warns that its loss and damage fund only holds a fraction of what's needed to address yearly economic damage related to human-caused climate change. Similarly, U.N. reports state that developed countries such as the United States and European nations, which are responsible for the largest chunk of planet-heating gases in the atmosphere, are providing far less than what's needed in adaptation financing. These funds could help improve housing and infrastructure in areas vulnerable to flooding. The WWA report says much of Pakistan's fast-growing urban population lives in makeshift homes, often in flood-prone areas. The collapsing of homes was the leading cause of the 300 deaths cited in the report, responsible for more than half. 'Half of Pakistan's urban population lives in fragile settlements where floods collapse homes and cost lives,' said Maja Vahlberg of the Red Cross Red Crescent Climate Centre, who also helped author the WWA report, in a press statement. 'Building flood-resilient houses and avoiding construction in flood zones will help reduce the impacts of heavy monsoon rain.' ___ Arasu reported from Bengaluru, India. ___ Follow Sibi Arasu on X at @sibi123 ___ The Associated Press' climate and environmental coverage receives financial support from multiple private foundations. AP is solely responsible for all content. Find AP's standards for working with philanthropies, a list of supporters and funded coverage areas at

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