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As of 2015, Canadians have a life expectancy of 82 years. However, the nation still struggles with various diseases. Here are the five most common diseases in Canada:

Cancer (Malignant neoplasms)

Cancer is currently one of the top diseases in Canada. In 2013, the latest available year for such information, Statistic Canada’s website reported that cancer was responsible for 75,112 deaths for both men and women. Lung cancer is the most common form of cancer for Canadians. According to the World Atlas, this is due to Canadians’ high tobacco/alcohol use and high-fat diets (which also increase the likelihood of developing pancreatic cancer).

On June 20, the Canadian Cancer Society reported that nearly 50 percent of Canadians are expected to be diagnosed with some form of cancer during their lifetime. The report goes on to say that, “excluding non-melanoma skin cancer,” approximately 206,200 Canadians are expected to face a cancer diagnosis.

Heart Disease

Heart disease killed 49,891 Canadians in 2013. In addition to poor diet, little exercise and the popularity of consuming tobacco, income is also a factor. On a scale from 0-10 percent, lower-income Canadians were 4.9 percent more likely to suffer from heart disease than those making the most income.

Stroke (Cerebrovascular diseases)

In 2013, strokes also claimed 13,400 Canadian lives. Strokes are caused by an inconsistent blood flow to the brain. A large amount of sodium in instant meals and fast food brings about hypertension, high blood pressure and, eventually, a stroke. Due to the average Canadian’s diet, this explains why strokes are one of the top diseases in Canada.

Chronic Lower Respiratory Diseases (CLRDs)

CLRDs caused 11,976 deaths in 2013. These diseases restrict the flow of oxygen to the lungs (asthma, chronic bronchitis, emphysema, etc.). Bad air quality and smoking leads to the development of some CLRDs.

Diabetes (Diabetes mellitus)

Finally, diabetes brings up the rear in the list of top diseases in Canada. It caused 7,045 deaths in 2013 alone. Consuming a large amount of sugar from sodas, sugary beverages and various prepackaged foods can lead to diabetes. Income also heavily influences this disease. Using the same 0-10 percent scale from earlier, those who belong to lower-income groups were found to be 5.1 percent more likely to be living with diabetes than those in the highest income bracket.

Considering all of these factors, there are some steps Canadians can take to prevent developing some of these detrimental diseases. Universal health care and private clinics provide convenient, government-funded medical help. In fact, the country’s healthcare system updates the wait times one should expect if they need to visit any health care facility. However, lifestyle changes are also necessary to treat and prevent these diseases.

Jada Haynes

Photo: Flickr

Top Diseases in Comoros
Off the coast of Southern Africa, a group of four volcanic islands called Comoros lies between northern Mozambique and northern Madagascar. Although the tropical islands are home to picture-perfect beaches, even tourism struggles to lift the poor country out of poverty. Life expectancy in Comoros remains relatively low, at just 64.2 years. Here are the top diseases in Comoros:

Lower Respiratory Infections

From an epidemiological perspective, lower respiratory infections typically include illnesses such as bronchiolitis, acute bronchitis, pneumonia and influenza. These infections manifest with symptoms such as a cough or asthma. Common in both adults and children, it is a cause of illness and death worldwide.

In 2015, it was reported that lower respiratory infections were the most deadly of the top diseases in Comoros and had been for the past ten years. Despite remaining the most lethal of the country’s diseases, lower respiratory infections have become 26 percent less prevalent since the previous decade.

Diarrheal Diseases

Responsible for the deaths of roughly 525,000 children each year, diarrheal diseases are the second most common cause of death for children under the age of five around the world. As of 2015, the second most fatal type of disease of the past decade in Comoros was reported to be diarrheal diseases. Fortunately, diarrheal diseases have become 29.5 percent less prevalent since 2005.

Cardiovascular Diseases

Resulting from the buildup of plaque in the blood vessels, cardiovascular diseases are a leading cause of death worldwide. In 2015, cerebrovascular disease and ischemic heart disease were the third and fourth most fatal diseases in Comoros respectively. Unfortunately, since 2005, cerebrovascular diseases have become 4.2 percent more prevalent, and ischemic heart disease had become 5.4 percent more prevalent.

Since 2005, rates of lower respiratory infections and diarrheal diseases have decreased substantially in the country. However, the rate of cardiovascular diseases, a type of noncommunicable disease, has increased. With international assistance from the World Health Organization, a national health policy has been adopted for the years 2015 to 2024, and a health development plan has been adopted for the years 2015 to 2019. Comoros will continue to benefit from foreign aid until putting in an effective and functioning health system.

Shannon Golden

Photo: Flickr

Top Diseases in the Marshall IslandsThe Marshall Islands consist of two strings of 29 coral atolls and five islands in the North Pacific between Australia and the Hawaiian Islands. Due to a lack of natural resources and high unemployment rates, the island struggles with poverty and accompanying diseases.

For tourists, the top diseases in the Marshall Islands are Zika virus and typhoid. However, far more diseases inhibit and threaten the lives of those who live on the islands year-round.

Every day, the inhabitants of these islands struggle to remain healthy due to both communicable and noncommunicable diseases.

Communicable Diseases

Neglected tropical diseases (NTD) are some of the top diseases in the Marshall Islands. They are a group of viral, parasitic and bacterial diseases that typically affect impoverished communities that lack proper sanitation.

According to the CDC, NTDs impair physical and cognitive development and can create a cycle of disease and poverty. Examples of neglected tropical diseases include dengue fever, leprosy, rabies and hookworm infection.

Other communicable diseases include Hepatitis, schistosomiasis, meningitis, and Lassa fever. These diseases are hard to control due to poor water supplies, personal hygiene issues, overcrowding and a lack of good medical facilities.

Noncommunicable Diseases

Noncommunicable diseases are the leading cause of death in the Marshall Islands. Diabetes, chronic respiratory diseases and urogenital, blood and endocrine diseases often develop as a result of reduced mobility and obesity.

In 2011, Pacific health ministers declared that noncommunicable diseases were an urgent crisis in the Pacific Islands. Additionally, the Republic of the Marshall Islands Embassy asserts that the influence of Western culture has led to an increase in consumption of unhealthy food, alcohol and tobacco.

Additionally, the government has recognized the increase in heart conditions and diabetes and is working on ways to influence lifestyle changes and increase access to healthcare.

According to the World Health Organization Country Cooperation Strategy for Marshall Islands (2013-2017), “because of the unique situation of Pacific countries with their limited systems and human resource capacities, it is essential to have modest, realistic and cost effective plans.”

The Marshall Islands have already succeeded in eradicating some vaccine-preventable diseases from the country. A large-scale mass drug administration campaign eliminated lymphatic filariasis in the Marshall Islands on March 30, 2017. Consequently, there is hope for the eradication of even more disease with the necessary cooperation between the government and citizens of the Marshall Islands.

Madeline Boeding

Photo: Flickr


As Venezuela’s street crime rates rose throughout the Chávez presidency — and as they have continued to do so under President Maduro — its citizens began to fall prey to disease. The spread of common diseases in Venezuela such as hepatitis A and B, typhoid, malaria, rabies and yellow fever echo the rise of corruption in the nation. These diseases are the new normal alongside Venezuela’s crumbling economy.

Over the years, these diseases have waxed and waned in Venezuela. As new vaccinations came out, smaller outbreaks would occur.

Under the Chávez regime — February 2, 1999 to March 5, 2013 — Venezuela suffered a degrading economic collapse. As a result, President Maduro’s administration inherited the damage alongside the leadership.

Venezuela is home to one of the largest oil reserves in the world, and its primary source of export revenue is oil. During Chávez’s presidency, his goal was to use oil revenues to finance a social revolution that would benefit low-income families in Venezuela.

Nevertheless, the country’s corrupt leaders shifted the oil revenue into their personal coffers rather than investing in the poor. Economic chaos rules today’s Venezuela, and a product of this 10-year disarray is the world’s highest rate of inflation. Citizens must line up every morning to obtain such basic goods as rice, beans, cooking oil, toilet paper and toothpaste. These lines mark the streets of Caracas and are known to be the focus of international media.

As of late, the flow of imports has all but stopped. The government, struggling with corruption, cannot pay for imports due to their extreme debt. Venezuela imported everything but oil; now, the country lacks everyday products, including medicines and vaccinations. Consequently, common diseases in Venezuela have returned.

According to the New York Times, the prevalence of malaria in the country is at its highest level in 75 years. Venezuela’s child mortality rate is increasing, presenting a physical manifestation of the nation’s lack of resources.

Diseases once thought to be eliminated (and entirely preventable), such as malaria and diphtheria, are reappearing at alarming rates. These rises in prevalence particularly threaten the health of mothers and newborns during delivery and post-natal care.

There are individuals willing to make a difference in the fight against common diseases in Venezuela. Humanitarian activist Lilian Tintori, for example, has dedicated her life to a revolt against the Chávez regime. She wants to establish a humanitarian channel between the world’s nations and Venezuela to help deliver food, medicine and other necessary products.

Unfortunately, President Nicolas Maduro refuses to address the issue of scarcity and the preventable tropical diseases making a comeback in Venezuela. More emphasis needs to be placed on the government’s assistance in reducing the harm done by the most common diseases in Venezuela.

Francis Hurtado

Photo: Flickr


When working to eliminate poverty, understanding public health concerns in regions such as Grenada is critical. Communicable diseases such as measles, polio and smallpox on this Caribbean island are less common today than they once were as a result of vaccinations and other public health strategies. Noncommunicable and preventative diseases, however, have been of more concern to health workers and government officials in the country.

The World Health Organization (WHO), the Pan-American Health Organization (PAHO) and the Institute for Health Metrics and Evaluation (IHME) have found that the most prevalent diseases in Grenada are, in no particular order:

  • Cancer is a leading cause of death in Grenada. Roughly three percent of Grenadians die from this disease yearly. Prostate cancer is especially deadly, accounting for about 17 percent of those deaths. Local doctors and organizations have strived to raise awareness and money for the Grenada Cancer Society. The annual Walk for the Cure, for example, is hosted by the First Caribbean International Bank and helps give assistance to cancer patients in need.
  • Respiratory diseases and infections are also among the leading causes of death and disability in Grenada. During a 2010 PAHO study of discharge data at St. George’s General Hospital, respiratory illnesses made up 4.9 percent of visits. About 1.5 percent of the population dies yearly from lower respiratory infections, a rate that is significantly higher than that of similar countries. Risk factors include air pollution and tobacco smoke.
  • Cardiovascular diseases are very common in Grenada, and ischemic heart disease is the most common form found in the country. IHME estimates that 2.4 percent of people die yearly from this form of heart disease. And, although fewer people die from it annually, ischemic heart disease still remains a leading cause of death. Those with poor diet or physical inactivity are more at risk of cardiovascular disease. The Grenada Heart Project is critical in raising awareness and helping the sick.
  • Hypertension is among the diseases in Grenada that adults are most commonly diagnosed with. The morbidity rate of hypertension for adults ages 20 to 59 is 7.25 percent and for the elderly is 48.7 percent. In the PAHO hospital study mentioned above, this health problem led to 12.9 percent of hospital visits. Poor diet and physical inactivity are risk factors for hypertension. To reduce the risk of hypertension, the Grenada Food and Nutrition Council recommends better lifestyle choices such as eating healthier, being more physically active and quitting smoking. The Grenada Heart Project also focuses on this issue.
  • Diabetes is another disease that adults are most commonly diagnosed with. Diabetes affects about 9.4 percent of adults ages 20 to 59 and 27 percent of the elderly. About 1.7 percent of Grenadians die from this disease yearly, which is significantly higher than that of similar countries. The PAHO hospital study found that diabetes accounted for 27 percent of doctor’s visits. The risk of this disease has been seen to increase with age and if previously diagnosed in the family. Again, poor diet and physical inactivity are risk factors for diabetes. The Grenada Diabetes Association is a key decision-maker working to decrease the death rates and prevalence of diabetes in the country.
  • Cerebrovascular disease is another leading cause of death and disability in Grenada. Roughly two percent of the population dies every year from this illness, another mortality rate that is significantly higher than that of similar countries. As with many of the above diseases, poor dietary choices and physical inactivity increase chances of cerebrovascular disease.

Many health workers hope that, by addressing obesity, a preventative condition that has become more widespread in the country, they can decrease the prevalence of noncommunicable diseases in Grenada such as diabetes, hypertension, heart disease and cerebrovascular disease. One way to combat these health problems is to focus on eating habits and physical activity, both critical factors that affect obesity.

Fighting these diseases in Grenada and around the world has not and will not be easy, but people and organizations are continuing to work together to raise awareness for prevention, treatments and cures.

Francesca Montalto

Photo: Flickr


Coronary heart disease is the leading cause of death in the relatively small country, which has less than seven million citizens. The next leading causes of death include influenza, pneumonia, kidney disease, liver disease and lung disease. El Salvador has a relatively high number of healthcare workers but is still not able to meet the needs of the population with its current healthcare system and the unequal distribution of healthcare workers at different levels of service.

It is important to note that the top diseases in El Salvador and the top causes of death are not the same. Violence against citizens and road traffic accidents are among the top ten causes of death in El Salvador.

Regarding infectious diseases in El Salvador, currently, the Zika virus is still a significant risk to pregnant women in or traveling to El Salvador. The primary method of contraction of this disease is through mosquito bites and sexual exposure. However, these mosquitoes cannot usually survive at elevations above 6,500 feet.

Though not everyone who contracts Zika gets sick, sometimes mild symptoms can last for several days. Occasionally Guillain-Barré syndrome (GBS) will accompany Zika virus, which entails muscle weakness and paralysis for a few weeks to several months. Research suggests the two are associated.  However, it remains unconfirmed due to the minimal amount of people with Zika virus that also contract GBS.

Hepatitis A and Typhoid can both be contracted through contaminated food or water in El Salvador though they are not among the top causes of death in the country. The risk of malaria contracted through mosquitoes is low, and is preventable with bug sprays.

Though El Salvador has struggled to provide adequate healthcare to its citizens in the past, the Ministry of Health and Social Welfare (MSPAS) has made strides in changing things. Most pressing is the disparity between public and private healthcare systems.

Ellen Ray

Photo: Flickr

Fighting Common Diseases in GuatemalaCommon diseases in Guatemala include malaria, bacterial diarrhea, and HIV/AIDS. These diseases are common throughout this area of the world. Malaria spreads through mosquitoes, which are common in Central American countries, putting inhabitants at a greater risk for the disease. People in these countries may live in areas without proper sanitation, consequently causing a high prevalence of bacterial diarrhea. HIV/AIDS is common in Guatemala partially due to a lack in sexual education programs.

In certain areas of Guatemala, malaria rates are higher than in other countries. In 2015, there were 6,834 cases of the disease. Since 2005, the government has been fighting the disease with additional funding from the Global Fund. The goal is to nationally eliminate malaria by 2020. In order to avoid bacterial diarrhea, doctors advise individuals to practice good hygiene when using the restroom, maintain clean water, and properly clean food.

Lastly, Guatemala created a comprehensive sexual education plan to prevent the spread of HIV/AIDS and other sexually transmitted diseases. However, a survey in 2015 showed that only 7 percent of students learned all of the intended points in the program. Another issue with this program is that out of classrooms that taught students about condom usage, 43 percent did so incorrectly. Since STDs and STIs are a common problem in Guatemala, people are pushing for improvement of the sexual education program through better instructor training or a complete reconstruction.

These are a few of the most common diseases in Guatemala. Travelers are warned against malaria and bacterial diarrhea. Additionally, HIV ranks number nine in the top 10 causes of death in Guatemala. Through better education and prevention, the prevalence of these common diseases in Guatemala can significantly drop and the well-being of the people will improve.

Helen Barker

Photo: Flickr


Located off the coast of the Black Sea in Southeastern Europe and nestled just between Romania and Turkey lies the nation of Bulgaria, a country only slightly larger than the state of Tennessee. Although Bulgaria’s average life expectancy has been climbing steadily, the country still has one of the shortest life expectancies in the European Union at 74.5 years, coming in just ahead of Lithuania and Latvia. Here are some facts about the top diseases in Bulgaria:

Cardiovascular Diseases

Heart diseases–disorders of the blood vessels and heart–are the deadliest of the top diseases in Bulgaria. Currently, such diseases are the cause of over 60 percent of all deaths in the country.

According to a 2015 report published by the Institute for Health Metrics and Evaluation, the three most fatal heart diseases of the previous decade in Bulgaria were ischemic heart disease, cerebrovascular disease and hypertensive heart disease, which were the first, second and third most deadly diseases in Bulgaria respectively. Since 2005, deaths from ischemic heart disease had become 1.9 percent more prevalent, while deaths caused by hypertensive heart disease had become 13.2 percent more prevalent. Deaths due to cerebrovascular disease, on the other hand, had decreased by 1.3 percent.

The World Heart Federation lists controllable risk factors of heart diseases to be, among others, tobacco exposure, harmful consumption of alcohol, physical inactivity and obesity. In 2009, Bulgaria addressed the country’s high prevalence of heart diseases by participating in World Heart Day, providing free cardiology exams across the country.

Alzheimer’s Disease

Following the formerly listed heart diseases, Alzheimer’s disease is the fourth most fatal of the top diseases in Bulgaria. Alzheimer’s disease, a form of dementia, is a degenerative brain disease in which protein deposits abnormally build up in the brain and, as of 2015, death by Alzheimer’s disease in Bulgaria had become 27.8 percent more common than in the previous decade. According to the World Health Organization, the disease is now the cause of 26.2 percent of all deaths in the country.

Since January 2014, a national policy plan to address dementia in all its forms has been in final review. As of July 2016, there was no finalized national dementia strategy in Bulgaria to address the recent rise in Alzheimer’s disease.

The top diseases in Bulgaria have only just begun to be addressed domestically. With the continuation of direct policy changes and implementation of preventative care, Bulgaria hopes to see reduced instances of heart diseases and Alzheimer’s disease, ultimately increasing their life expectancy.

Shannon Golden

Photo: Flickr

Common Diseases in ThailandWith places like Bangkok and Khao Yai National Park, Thailand has become a very popular tourist country. In 2016 alone, the country with a population of more than 68 million people hosted close to 33 million visitors. Alongside its many attractions are some issues, including that diseases in Thailand are a persistent problem. Here are three common diseases in Thailand.

3 Most Common Diseases in Thailand

  1. Dengue: Dengue is a viral disease that Aedes aegypti mosquitoes transmit. Once someone is infected, they become a carrier. There are four strains of the virus. Dengue mostly impacts people in tropical climates. Symptoms include high fever and pain in joints, in muscles and behind the eyes.There is currently no cure. It is recommended to seek professional medical care when experiencing symptoms.According to the World Health Organization, “the America, South-East Asia and Western Pacific regions are the most seriously affected” by dengue. The WHO reports 50 to 100 million dengue cases annually. There is now a vaccination for the disease.
  2. HIV/AIDS: HIV is a sexually transmitted infection that weakens the immune system by destroying helper T cells. According to UNAIDS estimates, 440,000 Thai people were living with HIV in 2015.While there is no cure for HIV, there is a treatment known as antiretroviral therapy (ART). ART helps those infected and can even prevent the development of AIDS, which is the last stage of the infection. With the approval of the National AIDS Committee, Thailand is following a plan aimed at eliminating HIV/AIDS in the country by 2030.
  3. Zika Virus: As with dengue, Aedes aegypti mosquitoes spread the Zika virus. It can also be sexually transmitted. According to Reuters, Thailand had around 200 Zika cases from January to September 2016, from January to September. Zika virus is known to cause deformations in newborn babies. For this reason, it is suggested that pregnant women stay away from places where it is prevalent, including Thailand.The people of Thailand are doing what they can to fight Zika virus. The Centers for Disease Control and Prevention trained laboratory workers on how to detect it. There are also surveillance systems that monitor diseases in Thailand, including the Zika virus. There is currently no cure for the Zika virus, but there are tests on a vaccine underway.

These are all presently common diseases in Thailand, but there is significant research being conducted to reduce and eliminate their impact. For now, doctors will continue to assist those affected until their cures are found.

Raven A. Rentas

Photo: Flickr


Laos is a landlocked country in Southeast Asia. The Mekong River runs through the mountainous terrain of the county and provides food, a means of transportation and hydroelectric power. Many areas of the country have poor sanitation and lack accessible healthcare. Four common diseases in Laos are Dengue Fever, respiratory infections, ischemic heart disease and diarrheal diseases.

4 Common Diseases in Laos

  1. Dengue Fever: Dengue fever is a mosquito-transmitted virus. The Aedes Aegypti mosquito transmits the disease and breeds in stagnant water, often in man-made containers. Symptoms of dengue fever are a high fever, headache, muscle and joint pain and eye pain. Around two percent of cases advance to dengue hemorrhagic fever which can be fatal. The number of dengue fever cases and deaths is increasing as a result of urbanization and lack of adequate sanitation. Dengue is the fourth leading cause of death in Laos. The government has run many campaigns to encourage people to remove standing water from their land. This eliminates the breeding areas of mosquitoes that spread the disease.
  2. Respiratory Infections: Lower respiratory infections are also very common in Laos. Influenza and pneumonia cause 13 percent of deaths in Laos. These diseases are most prevalent in June and July because of the rainy season and subtropical climate. Many people in rural Laos do not have access to vaccines. Pregnant women and children have a higher risk of dying from these illnesses. Household pollution contributes to the prevalence of these diseases in Laos. Alternative stoves and heating appliances could help reduce pollution in the home and prevalence of respiratory infections.
  3. Ischemic Heart Disease: Also known as coronary heart disease, ischemic heart disease is another of the most common diseases in Laos. The primary causes of this disease in Laos is dietary risks, high blood pressure, smoking and household air pollution. The number of ischemic heart disease cases is increasing as a result of increasingly poor diets in urban areas. The incidence of heart disease has increased by 33 percent from 1990 to 2010. There is high mortality for this disease in Laos because people do not recognize warning sign of danger or seek necessary medical care. In order to decrease the mortality of the disease, Laos needs to first increase education so that people know when to seek help. Then Laos needs more small health clinics which people can access easily when they feel symptoms.
  4. Diarrheal Diseases: A variety of diarrheal diseases is also very common in Laos. Diarrhea is most deadly in children under five and can be fatal because it causes extreme dehydration. Children can face impaired physical and cognitive development if they survive. Ingesting contaminated food or water causes children to contract this disease. Risk factors for these diseases in Laos are air pollution in the house, being underweight as a child and suboptimal breastfeeding. Research recommends education campaigns in elementary level schools; these will reach a large number of children and these kids can share what they learned with their families. In addition, mothers should breastfeed their children up to two years to improve their children’s nutrition.

The common diseases in Laos are caused by some overlapping features. Laos’ health infrastructure is very small. During the rainy season, roads become inaccessible and people become isolated in their villages without any medical attention. In addition, household pollution contributes to both respiratory infections and diarrheal diseases. Finally, education campaigns focused on transmission and early warning signs are very important.

Sarah Denning

Photo: Flickr