This is a blog run by mediPhone interns on healthcare in Japan and around the world.

Wednesday, July 8, 2015

Poliomyelitis


Poliomyelitis, know as polio, describes a highly infectiouse disease caused by a virus. While anyone can become infected by polio, this virus primarily targets young children under 5

Although polio cases have been decreased dramaticlay since 1988 (over 99 percent), it still exists today. In 1988, 350,000 cases were reported, but by the year of 2013, the number decreased to 416 infected people. While this sounds like a great achievement, Polio will continue to be a threat as long as there is even a single child in the world who carries the disease. This is because the virus can easily be imported into a polio-free country and distributed rapidly to people who are not immunized against polio.

Polio is spread through person-to-person contact via fecal-oral transmission. In other cases it can be spread by a common vehicle, like a container of water or food, and then multiply in the intestine. Because of this, is can spread especially fast in a community with a low standard of hygiene and sanitation.

Once a person gets infected with the virus, different outcomes can be noticed. Most of the infected people (90 percent) don’t show any symptoms and just carry the virus in them, while in other cases victims can have symptoms like fever, fatigue, headache, vomiting, stiffness in the neck and pain in the limbs. However, one in 200 infections can lead to irreversible paralysis, which usually pertains to the legs. This can happen in a matter of hours. In 5 to 10 percent of infections, respiratory mussles get immobilized, leading to death.

Today, Polio remains in 3 countries. Nigeria, Pakistan and Afghanisatn. In Afghanistan, there have been a total of 4 cases in 2015. In Nigeria there have been no new cases in this year, but in 2014 a total of 6 was noticed and in Pakistan there is a total number of 26 cases in 2015.

Unfortunately, no real cure exists. However, the eradication of polio can be achieved by prevention, though the use of vaccines. Two different kinds of vaccines exist: the intactivated poliovirus vaccine (IPV) and the oral poliovirus vaccine (OPV). IPV is used throughout much of the world and must be given multiple times, but once finished, the child is immunized for his or her entire life.

One private-public partnership that continues to strive for polio eradication is the Polio Eradication Initiative. This partnership was a product out of the forty-first World Health Assembly in 1988 with the aim to eliminate polio from the world. National governments are collaborating with the World Health Organization, Rotary International, the US Center for Disease Control and Prevention, United Nation Inernational Children`s Fund, and others. Through its multi-pronged programs consisting of research, new product development, strategy formulation and policy development, polio is being eradicated.
When this goal is achieved everyone in the world will benefit equally, as the danger of polio will be eradicated and no child will have to suffer from the paralysis anymore.

- Jay






Polio Global Eradication Initiative:
http://www.polioeradication.org/Polioandprevention.asp

WHO - Polyomyelitis:
Center for Disease Control and Prevention:
http://www.cdc.gov/polio/about/index.htm

Tuesday, July 7, 2015

Heat Waves: The Silent Assassin



The scorching heat baked roads, trees, and anything else that dares to stand in its way. At 44.7 degrees Celsius, Karachi, the largest metropolitan area in Pakistan, bore the brunt of the heat. After months of sizzling temperatures, casualties became devastatingly commonplace. Humans weren’t the only victims. At this temperature, asphalt roads began melting, adding to a long list of heat-related damages in the city. People strove to provide a logical reason for this event. Was this due to climate change? Atmospheric fluctuation? Mother nature? While opinions differed, one thing was certain: these were no ordinary summer days. This was a heat wave[i].

It’s common knowledge that the average body temperature is about 98.6 degrees Fahrenheit, or 37 degrees Celsius. This optimal temperature strikes a perfect balance, preventing bacterial infection while maintaining an efficient metabolic rate. In short, it’s the ideal temperature to maintain homeostasis. If our surrounding environment is too cold, our bodies respond by inducing reflexive muscle movement to warm our bodies, otherwise known as shivering. Conversely, when the environment is too warm, a human’s natural response is to cool down by sweating. But what happens when the surrounding temperature is simply too hot for the body to handle?[ii]

This year’s summer forced countries like India and Pakistan to grapple with that very question. While regular summers in places like Karachi and New Delhi often reach 40 degrees Celsius, this year’s heat wave has approached record-breaking levels. The effects have been tragic. As of July 1st, over 3,000 people in the region have died from heat wave-related conditions. Karachi alone has accounted for 1,200 deaths. Roughly 50 times as many people, or around 65,000, have flocked to hospitals to be treated for heat stroke[iii].


So what exactly is heat stroke? Heat stroke is a condition in which prolonged exposure to heat leads to an inability for the body to maintain regular body temperature. Consequently, this can lead to seizures, stroke, comas, and even death.[iv] To exacerbate the situation, both frequent power outages throughout countries like Pakistan and abstention from water during the month of Ramadan have heightened the number of casualties, where fasting is observed from dawn to sunset.[v]
But Southeast Asia isn’t the only region affected by the heat wave this summer. Last week, the German town Kitzingen recorded a brutal 40.3 degrees Celsius, the highest temperature ever recorded in the nation since record keeping began in 1881. The same week also brought temperatures of 36.7 degrees Celsius to Britain, a record temperature for the month of July.[vi] Heat waves in other European nations, including France, Poland, Portugal, and Spain, have also threatened citizens. While fatality rates have not been on the same scope as in Southeast Asia, babies, older adults, and those with chronic health problems remain susceptible to dehydration, fever, and heat stroke.[vii]

As a result of heat waves occurring around the world, the World Health Organization and World Meteorological Organization released its first ever guideline to address heat-related concerns. Titled Heatwaves and Health: Guidance on Warning-System Development, the report describes human physiology in increased temperatures, societal impacts of sustained heat, and intervention strategies to reduce potentially fatal effects of heat waves. On a more practical level, the publication gives helpful tips for anyone wishing to avoid the potentially detrimental effects of heat. These include drinking fluids that contain little to no sugar, putting on sunscreen with a protection factor of 15 or higher when going outside and avoiding rooms with dark curtains.[viii]Despite the fact that heat waves rarely drive the same attention-grabbing headlines as hurricanes and earthquakes, they are nevertheless among the most dangerous of natural hazards. Exposure to prolonged heat can cause severe dehydration and heat stroke, both of which can lead to death. In areas like Southeast Asia, over 3,000 deaths have been recorded this summer alone.[ix] As simple as it may seem, drinking cold fluids regularly and remaining indoors as much as possible are critical choices that can ultimately be the difference between life and death. While heat waves are far over, it is important to keep these tips in mind to enjoy a safe and sunny summer.
-Kai






[i] Iyengar, Rishi. "A Heat Wave in Pakistan Has Killed Around 140 People."Time. Time Inc. Network, 22 June 2015. Web. 7 July 2015.

[ii] WebMD. "Body Temperature." WebMD. Healthwise, 14 Nov. 2014. Web. 07 July 2015.

[iii] Iyengar, Rishi. "A Heat Wave in Pakistan Has Killed Around 140 People."Time. Time Inc. Network, 22 June 2015. Web. 7 July 2015.

[iv] WebMD, LLC. "Heat Stroke: Symptoms and Treatment." WebMD. WebMD, LLC, 27 Sept. 2014. Web. 07 July 2015.

[v] Iyengar, Rishi. "A Heat Wave in Pakistan Has Killed Around 140 People."Time. Time Inc. Network, 22 June 2015. Web. 7 July 2015.

[vi] Bacon, John. "Europe Sizzles as Heat Wave Smashes Records." USA Today. Gannett, 06 July 2015. Web. 07 July 2015.

[vii] WebMD, LLC. "Heat Stroke: Symptoms and Treatment." WebMD. WebMD, LLC, 27 Sept. 2014. Web. 07 July 2015.

[viii] "Heatwaves and Health: Guidance on Warning-System Development."World Health Organization. Ed. G.R. McGregor. United Nations, July 2015. Web. 7 July 2015.

[ix] Iyengar, Rishi. "A Heat Wave in Pakistan Has Killed Around 140 People."Time. Time Inc. Network, 22 June 2015. Web. 7 July 2015.