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Why are we seeing more pandemics? Our impact on the planet has a lot to do with it

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The pandemic – the global spread of infectious diseases – appears to be making a comeback. In the Middle Ages we had the Black Death (plague) and after World War I, the Spanish flu. Tens of tens of millions of individuals he died of those diseases.

Then the science began working gain the advantageand vaccination almost completely eliminated smallpox and polio. Antibiotics have change into available to treat bacterial infections, and more recently, antiviral drugs have also change into available.

But lately and many years, pandemics they appear to be coming back. In the Nineteen Eighties we had HIV/AIDS, then several flu pandemics, SARS, and now Covid (no, it’s not over yet).

So why is that this happening and is there anything we can do to prevent future pandemics?

Unsustainable ecosystems

Healthy, stable ecosystems provide services that keep us healthy, resembling providing food and clean water, producing oxygen, and providing green spaces for our residents. relaxation and well-being.

Another key service provided by ecosystems is disease regulation. When nature is in balance – predators control herbivore populations and herbivores control plant growth – it is more difficult for pathogens to emerge in a way that causes pandemics.

But when human activity disrupt and disturb the balance of ecosystems – for instance as a results of climate change and biodiversity loss – things are going fallacious.

For example, climate change affects the number and distribution of plants and animals. As the planet warms, disease-carrying mosquitoes may migrate from the tropics to once temperate climates and should infect more people during months that are typically disease-free.

We investigated the relationship between weather and dengue transmission in China our findings confirm the same conclusion he reached many other studies: Climate change is probably going to put more people prone to dengue.

Covid was not the first pandemic and it is unlikely to be the last.
Jaromir Chalabala/Shutterstock

Biodiversity loss can have similar effects by disrupting food chains. When farmers cut down forests South America to graze cattle in the first half of the twentieth century, tiny, forest-dwelling, blood-eating vampire bats suddenly had a smörgåsbord of huge, sessile animals to feed on.

While vampire bats were previously kept in check by limited food availability and the presence of predators in the balance forest ecosystemthe species’ numbers have exploded in South America.

These bats carry the rabies virus that causes rabies fatal brain infections in bitten people. Although deaths from bat-borne rabies have now fallen dramatically as a results of vaccination programs in South America, rabies from bites from other animals still stays. poses a global threat.

As urban and agricultural development impact natural ecosystems, there’s an increasing risk of humans and pets becoming infected with pathogens that may normally only be present in wild animals, especially when humans hunt and eat wild animals.

HIV virus e.g. first entered the human population from apes that were killed in Africa for food after which spread around the world through travel and trade.

Meanwhile, it is believed that bats original tank for the virus that caused the Covid-19 pandemic, which has killed over 7 million people up to now.

Mosquitoes flying around the green grass.
Climate change may affect the distribution of disease-carrying animals resembling mosquitoes.
Kwangmoozaa/Shutterstock

Ultimately, until we effectively address the unsustainable impact we have on our planet, pandemics will proceed to occur.

Targeting the ultimate causes

Factors resembling climate change, biodiversity loss and other global challenges are the ultimate (high-ranking) explanation for the pandemic. Meanwhile, the direct (immediate) cause is increased contact between people, pets and wildlife.

In the case of HIV, although the direct cause was direct contact with infected monkey blood, the monkeys were only killed because large numbers of very poor people were hungry – which was the ultimate cause.

The distinction between ultimate causes and proximate causes is vital because we often only deal with proximate causes. For example, people may smoke due to stress or social pressure (the ultimate explanation for lung cancer), but it is the toxins in the smoke that cause the cancer (the proximate cause).

Generally speaking, the health service is anxious only with stopping people from smoking and treating the diseases that result from it, not with removing drivers who encourage people to smoke.

We respond to pandemics similarly, with lockdowns, mask-wearing, social distancing and vaccinations – all measures to stop the spread of the virus. However, we have paid less attention to addressing the ultimate causes of the pandemic – perhaps until recently.

Cigarettes on the table.
We often treat the immediate causes of disease, but not the ultimate causes.
Basil MK/Pexels

A planetary approach to health

There is growing awareness of the importance of adopting a “health of the planet” approach to improving human health. This concept relies on the understanding that human health and human civilization depend on the flourishing of natural systems and on the clever management of those systems.

With this approach, key drivers resembling climate change and biodiversity loss shall be prioritized in stopping future pandemics, while working with experts from a wide selection of fields to address the immediate causes, thereby reducing overall risk.

A planetary health approach has the advantage of concurrently improving environmental health and human health. We are encouraged by the increased use of teaching planetary health concepts in the environmental sciences, humanities and health sciences at many universities.

As climate change, biodiversity loss, population displacement, travel and trade proceed to increase the risk of disease outbreaks, it is critical that future planetary stewards higher understand how to address the ultimate causes that cause pandemics.

This article was originally published on : theconversation.com
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Health and Wellness

In the USA, bird flu was detected in pigs. Why does this matter?

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Last week, the U.S. Department of Agriculture reported that a pig at a backyard farm in Oregon had been infected with bird flu.

As the bird flu situation continues to evolve, now we have learned that the A/H5N1 strain of the virus infects a spread of animals, including quite a lot of birds, wildlife and dairy cattle.

Fortunately, now we have not seen sustained spread of the virus between people at this stage. However, the detection of the virus in pigs represents a worrying development in the trajectory of this virus.

How did we get here?

The most concerning sort of bird flu currently circulating is clade 2.3.4.4b A/H5N1, the influenza A strain.

Since 2020, the A/H5N1 2.3.4.4b virus has spread to a big selection of birds, wildlife and livestock which have never previously been infected with avian influenza.

While Europe is a hotspot for A/H5N1, attention is currently focused on the US. In 2024, dairy cattle were infected for the first time, with over The problem affects 400 herds in a minimum of 14 US states.



Bird flu has huge consequences for breeding and industrial food production, as infected poultry flocks should be slaughtered and infected cows may result in contamination dairy products. That said, pasteurization should make the milk secure to drink.

Although farmers have suffered heavy losses as a consequence of H5N1 bird flu, it may well also mutate to cause a pandemic in humans.

Birds and humans have various kinds of receptors in their respiratory tract to which influenza viruses attach, corresponding to a lock (receptors) and a key (virus). The attachment of the virus allows it to enter the cell and body and cause disease. Avian influenza viruses are adapted to birds and spread easily amongst birds but not in humans.

So far, human cases have mainly occurred in individuals who stayed at the facility close contact with infected livestock or birds. In the US, the majority were agricultural employees.

The fear is that the virus will mutate and adapt to humans. One key step for this to occur could be to vary the virus’s affinity from bird receptors to receptors found in the human respiratory tract. In other words, if the virus “key” has mutated to raised fit the human “lock”.

Recent testing of sample A/H5N1 2.3.4.4bz infected person, disturbing results were obtainedidentifying mutations in the virus which will increase transmission between human hosts.

Why are pigs an issue?

A pandemic strain of influenza in humans can arise in several ways. One involves close contact between humans and animals infected with their very own specific influenza viruses, creating opportunities mixing of genes of avian and human viruses.

Pigs are the perfect vessel for mixing genes to supply a human strain of pandemic flu because they’ve receptors in their respiratory tract that each avian and human influenza viruses it may well get tied up.

This signifies that pigs will be infected with each avian influenza virus and human influenza virus. These viruses can exchange genetic material, mutate and simply transmit to humans.


Conversation, CC BY-SA

Interestingly, there have been pigs in the past less vulnerable to A/H5N1 viruses. However, the virus has recently mutated they infect pigs more easily.

In a recent case in Oregon, A/H5N1 was detected in a pig on a non-commercial farm following an outbreak of disease amongst poultry kept on the same holding. This A/H5N1 strain originated from wild birdsand never the one common in US dairy cows.

Pig infection is a warning. If the virus makes its way into industrial piggeries, it might create a much higher level of pandemic risk, especially as winter approaches in the U.S., when seasonal human flu cases begin to extend.



How can we minimize the risk?

Surveillance is vital to early detection of a possible pandemic. This includes comprehensive testing and reporting of infections in birds and animals financial compensation and support measures for farmers to encourage timely reporting.

Strengthening global surveillance of influenza is crucial because unusual spikes in pneumonia and severe respiratory illnesses could signal a human pandemic. Our EPIWATCH system looks for early warnings of such activity, which can accelerate vaccine development.

If a cluster of human cases occurs and influenza A is detected, further testing (called subtyping) is vital to find out whether it’s a seasonal strain, an avian strain resulting from transmission of the virus, or a brand new pandemic strain.

Early identification can prevent a pandemic. Any delay in identifying an emerging pandemic strain allows the virus to spread widely across international borders.

The first human case of A/H5N1 in Australia was in a baby who became infected while traveling in India and was hospitalized for the disease in March 2024. Tests then identified influenza A (which might have been seasonal influenza or bird flu), but subtype to discover A/H5N1 was delayed.

This sort of delay may very well be costly if human-borne A/H5N1 emerges and is taken into account seasonal influenza because the influenza A test is positive. 5% of positive tests for influenza A undergo further subtyping in Australia and most countries.

In light of the current situation, there needs to be a low threshold for subtyping influenza A strains in humans. Rapid tests that may tell the difference between seasonal flu and H5 A flu are emerging and may form a part of governments’ pandemic preparedness.

The risk is higher than ever before

The U.S. Centers for Disease Control and Prevention states that the current risk posed by H5N1 to the general public stays low.

However, with the H5N1 virus already in a position to infect pigs and showing worrying mutations in adapting to humans, the risk level has increased. Given that the virus is so common amongst animals and birds, the statistical probability of a pandemic is higher than ever before.

The excellent news is that we’re higher prepared for a flu pandemic than other pandemics because vaccines will be produced in the same way as seasonal flu vaccines. Once the genome of the pandemic flu virus is understood, vaccines will be updated to match it.

Partially matched vaccines and a few are already available countries corresponding to Finland vaccinate high-risk farm employees.

This article was originally published on : theconversation.com
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Health and Wellness

WATCH: Joshua Joseph What kind of America do we want to be? – Essence

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“; } }); // Drag and scroll functionality const playlistContainer = document.getElementById(‘playlist’); let isDown = false; let startY; let scrollTop; playlistContainer.addEventListener(‘mousedown’, (e) => { isDown = true; playlistContainer.classList.add(‘active’); startY = e.pageY – playlistContainer.offsetTop = playlistContainer.addEventListener(‘mouseleave’; playlistContainer.classList.remove(‘active’); playlistContainer.addEventListener(‘mouseup’, () => { isDown = false; playlistContainer.classList.remove(‘active’); }); mousemove’, (e) => { if (!isDown) return; e.preventDefault(); const y = e.pageY – playlistContainer.offsetTop; const walk = (y – startY) * 3; .scrollTop = scrollTop – walk; }); } } if (” !== ‘efoc24’) { // Check DoubleVerify Quality Targeting signals before rendering the player if ( ‘unknown’ !== typeof PQ ) { PQ.cmd. push(function() { // If DVQT signals are not available after 500 ms, render the player anyway. const timeout_id = setTimeout( jwPlayerRender, 500 ); // Get “Authentic Direct” signals. PQ.getTargeting({ signals: [‘abs’] }, function(error, targetingData) { clearTimeout(timeout_id); jwPlayerRender(error? undefined: targetingData); }); }); } else { jwPlayerRender(); } function jwPlayerRender( dvqt_signals=”” ) { let jw_ad_tag ​​= {“client”:”googima”,”adscheduleid”:”G7hR9pQ2″,”schedule”:[{“tag”:”https://pubads.g.doubleclick.net/gampad/ads?correlator=&iu=/21698916284/ess/VideoNews&env=vp&gdfp_req=1&output=vast&sz=400×300%7C640x480%7C1000x1%7C1920x1080&description_url=__page-url__&tfcd=0&npa=0&vpmute=1&vpa=auto&vad_type=linear&url=__page-url__&vpos=preroll&unviewed_position_start=1&v=SRYaJJB3&pmnd=0&pmxd=60000&ad_rule=1&cust_params=ttid%3DSRYaJJB3%26frnch%3D__item-franchise__%26environment%3Dproduction%26kwblock%3DAbb%2CCapOne%2CLincoln%2CUPS%2CVG%2CATTCric%2CDisney”,”offset”:”pre”},{“tag”:”https://vid.springserve.com/vast/670880?url=https://www.essence.com/news/watch-joshua-jospeh-what-type-of-america-do-we-want-to-be/h=450&w=800&cb=2033″,”offset”:”50%”}]”offers”:{“bidders”:[{“id”:”jw-video-SRYaJJB3″,”name”:”jwdemand”,”publisherId”:”evcxFIDZ”,”siteId”:”WT5iFegj”,”placementId”:”24399785″}]”settings”:{“disableConsentManagementOnNoCmp”:true,”mediationLayerAdServer”:”dfp”,”floorPriceCents”:200,”floorPriceCurrency”:”usd”,”buckets”:[{“increment”:0.1,”max”:30,”min”:0},{“increment”:0.5,”max”:50,”min”:30}]}}}; // Configure ad tag on the fly… let additional_params = {}; // Input DVQT signals. if ( dvqt_signals && dvqt_signals.ABS.length > 0 ) { additional_params.ABS = dvqt_signals.ABS.join(“,”); } // Create a string of additional_parameters. let extra_params_str=””; for (enter additional_parameters) { let value = additional_parameters[key]; additional_params_str += `${key}=${value}`; if ( key !== Object.keys( additional_params .pop() ) { additional_params_str += ‘&’; } } // Update ad tag cust_params (must be URL encoded). if ( Object.keys( additional_parameters ). length > 0 ) { let ad_schedule = jw_ad_tag.schedule; if ( ‘undefined’ !== ad schedule type ) { for (let i = 0; i < ad_schedule. length; i++) { let address_address = new URL(jw_ad_tag. schedule[i].label); let query_params = new URLSearchParams(ad_url.search); query_params.set("cust_params", query_params.get("cust_params") + `&${additional_params_str}`); ad_url.search = query_params.toString(); jw_ad_tag.schedule[i].tag = ad_url.toString(); } } } let playerId; if ("undefined" !== type jwplayerQueue) { playerId = 'jw-video-SRYaJJB3'; jwplayerQueue.push({ 'instanceId': 'playerInstance_SRYaJJB3', 'playerId': playerId, 'config': { pid: 't6KP9zcV', playlist: "https://cdn.jwplayer.com/v2/media/SRYaJJB3", autostart: !jw_ad_tag, repeat: true, mute: true, aspect ratio: "16:9", share: {sites: ["facebook", "twitter", "email", "linkedin"]}, cast: {}, float: {disibility: true}, autoPause: {viewability: true}, displaytitle: true, displaydescription: true, controls: true, related: {displayMode: 'shelfWidget'}, interactive: {} , ad: jw_ad_tag ​​​​} }); } // Load video. jQuery(window).trigger("jw:loadplayers"); function waitForJWPlayer(callback) { if (type jwplayer !== 'undefined') { callback(); } else { setTimeout(function() { waitForJWPlayer(callback); }, 500); } } waitForJWPlayer(function() { jwplayer(playerId).on('adsManager', function (adsManagerLoaded) { let adsManager = adsManagerLoaded.adsManager; let videoElement = document.getElementById(playerId ); let config = { anId: '929481' , campId: '640x360', ias_xps: "autoplay", // autoplay state ias_xbp: "2", // video destination type ias_xar: "1" // autoplay state } // Start IAS integration googleImaVansAdapter. init(google, adsmanager, videoitem, config } } });

This article was originally published on : www.essence.com
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Health and Wellness

Primary care involves more than primary care physicians. A new review shows how patients can gain better access to healthcare

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Today there are Australians more likely than previous generations suffered from complex and chronic diseases similar to diabetes, heart disease and depression.

This means they’re more likely to need health care from a wide range of providers, similar to nurses, podiatrists, psychologists and physiotherapists, in addition to general practitioners. This is named “multidisciplinary care”. It works best when the abilities of all these professions can be found to the patient in a coordinated way.

However, the role of the health professions and how they’re financed have been frozen in laws and policy for a long time. All changes are gradual and chaotic. This mainly involved adding more items to the Medicare schedule, with each specialist practicing individually.

The result was greater inequality of access. Because less than half Alliance visits are billed collectively, with most patients paying almost A$70 for every consultation, and sometimes much more. Those who cannot afford the out-of-pocket costs and can’t discover a bulk invoicing specialist are missing out.

To assess how the federal government can remove barriers to team-based care and ensure healthcare employees achieve their full potential or full ‘scope of practice’, the federal government commissioned an independent review last yr.

The final report published yesterday sets a new path for primary care employees. This will make multidisciplinary care accessible to all Australians.

Utilizing the total potential of healthcare employees

The review included extensive consultations, including on two issues papers. The report itself comprises feedback from the consultation, including skeptical comments reflecting differences of opinion.

The title of the report was reflected, Unlocking the potential of our healthcare employeesits primary focus is on changing the foundations and regulations imposed by state and federal governments. This makes the work of healthcare employees more difficult and limits their ability to use their full skills and knowledge to manage patient care.

Over the past a long time the education of health care employees has improved. Professionals are subsequently able to do more than before. However, rules and regulations haven’t progressed, making it difficult for professionals to share these skills and knowledge.

The review found that that is contributing to profession dissatisfaction and other people leaving a wide range of health professions, exacerbating workforce shortages.

The review proposes a new way of documenting and describing what a occupation can do, through a so-called national skills and capabilities framework and matrix.

As with many other recommendations, the review highlights where that is already getting used internationally and how it can be integrated into other policies and frameworks to help with implementation.

Health care employees don’t use all their skills.
Studio DC/Shutterstock

To the frustration of most allied health professions, the review doesn’t recommend greater Medicare payments to allow them to practice independently.

Rather, the review beneficial paying for general practices to develop multidisciplinary teams. This will help professionals collaborate moderately than compete or isolate themselves.

The review also beneficial changing the foundations on healthcare skilled referrals, allowing qualified healthcare professionals to refer directly to non-GP specialists in similar areas. This signifies that if mandatory, your psychologist can refer you directly to a psychiatrist, or your physiotherapist can refer you directly to an orthopedic surgeon, moderately than going back to your GP.

This will weaken the GP’s gatekeeper role and potentially undermine the more holistic care provided by GPs. However, from the patient’s viewpoint, eliminating the intermediate step saves him/her out-of-pocket expenses.

The necessary suggestion recognizes that the health care system is evolving and that policies and regulations must evolve as well. It is subsequently now complementing its recommendations for change by introducing a continuous review approach through an independent mechanism. This would supply evidence-based advice and proposals on:

  • significant workforce innovations
  • new roles in health care
  • workforce models that involve a major change in scope.

When will we see change?

The review outlined a loose implementation timeline that might be described as short, medium and long run. It also assigns responsibility for every element of its recommendations to the suitable authorities and governments.

As almost all the recommendations require legislative changes, and lots of of them require agreement between the Commonwealth and the states, it’s unlikely that any of the changes will come into force this financial yr.

The review beneficial making changes in a scientific, evidence-based and protected way. Implementation would begin in areas of best need, similar to rural and distant Australia, in addition to in practices most ready for change, similar to Aboriginal Controlled Community Health Organizations or Victoria Community Health Centres.

The man is waiting for the doctor
The review beneficial changes to the referral process.
Voronaman/Shutterstock

IN releasing Health Minister Mark Butler described it as a “landmark” report and noted the complexity of implementation, which might require joint motion with states and territories. He noted the necessity for further consultations, but nevertheless adopted a supportive tone.

Can this review speed up real health reform?

Overall, the review found a pleased medium between giving healthcare employees the liberty to act and the stringent and inappropriate rules and regulations that currently limit patient care. It also outlines practical steps to achieve your goals.

The only drawback of the report is the emphasis on harmonizing state and territorial approaches. This would replace the present approach under which each state and territory decides, for instance, which vaccines can be administered by which specialists and which pharmacists can dispense over-the-counter.

One of the advantages of a federation is the potential for state and territory innovation and cross-border learning. Harmonization will limit such experimentation and will lead to greater stagnation seen previously in medical expert policy.

This article was originally published on : theconversation.com
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