Jul 30

Tuberculosis: Overlooked Infectious Disease

A few days ago, I was reading an interesting book about global health called What’s Killing Us by Alanna Shaikh. Alanna Shaikh is a global health and development specialist and in this book, she writes about the biggest global health challenges we face today. She explores everything from chronic diseases, obesity, Flu, HIV and AIDs, health systems around the world, and finally tuberculosis in her book. In the chapter where she discusses tuberculosis, she makes an interesting point that TB does not get the same coverage and focus as other diseases do specifically AIDS and HIV. This issue was very familiar to me because in one of my prior posts, I had discussed that sexually transmitted diseases especially in developing countries are not focused on. Tuberculosis is an overlooked infectious disease that may cause more harm in the future if things do not change.

According to the World Health Organization, tuberculosis is the world’s second deadliest infectious disease after HIV/AIDS. Tuberculosis is a bacterial infectious disease that directly affects the lungs of an individual. This infectious disease can be spread through person to person contact through droplets released in the air by coughing or sneezing and it is contagious. The symptoms of the tuberculosis are coughing, fatigue, loss of appetite, fever and breathing problems. A major problem in treating tuberculosis is that there are now three drug resistant types of tuberculosis. Tuberculosis is commonly treated by strong antibiotics such as rifampicin and isoniazid. However, bacteria are able to adapt and develop resistance against the drugs that used to treat tuberculosis. There are three types of drug resistance tuberculosis: multiresistant, extensively resistant, and totally resistant.  Multi-resistant and extensively resistant tuberculosis are resistant to certain combinations of drugs that are used to treat regular TB. There were 650,000 cases of multi-resistant tuberculosis in the world in 2010. Totally resistant tuberculosis is completely resistant to all types of TB drugs and it is mostly incurable. Unlike HIV, there is no protection against tuberculosis and there is no other way to avoid it. Almost forty percent of people with tuberculosis do not get diagnosed and most of those people are living in developing countries. It is also often misdiagnosed because of its ability to mimic similar symptoms of other diseases.

Why should we care about tuberculosis? We should care about tuberculosis because of the increased amount of globalization in the world today. Individuals are always on the go and people can now reach almost anywhere in the world in very little time.

Since tuberculosis is easily spread through the air, it is more likely to create a severe outbreak. Also, it has been reported that drug resistant tuberculosis is spreading fast around the globe at a frightening pace.
If there is outbreak of drug resistant tuberculosis, curing large populations will be extremely difficult. Another alarming statistic is that about 1.4 -1.7 million people died from tuberculosis in 2010, however considering the medicines and advances we made, the number of deaths should be around 250,000 deaths annually. This shows that we have not used our resources correctly.

Currently, we can only push for more detection and steady treatment, especially in developing countries because tuberculosis is more likely to affect these countries. One out of three people have tuberculosis in the world. That is a lot of people around the globe. If every nearby health clinic had simple detection equipment, more lives would be saved. Another issue is that many people are diagnosed with tuberculosis and are prescribed a treatment for six months. However, individuals stop taking the medicines because it is either too expensive or its a personal choice.
When patients do not finish their course of treatment for six months, they are not completely cured. The bacteria then have time to adapt to the drugs, and the tuberculosis becomes drug-resistant as well as more severe than before. This is mainly how drug resistant tuberculosis spreads so rapidly. It is important to come up with a solution to combat this problem. mHealth also known as mobile health can be beneficial to help reduce the number of people who stop their treatment midway. According to a recent study made by the world bank, 75% of the world has a mobile phone. If local health clinics and its health workers were trained to sent text messages or phone calls to remind patients about refilling their medications or coming back to the clinic for a check-up, that may help improve the situation. Tuberculosis can be a danger to both developed and developing countries in the future, and it is important to take control of the future and situation now rather than later.

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1 comment

    • Barun P Mondal on 1 August, 2012 at 11:29 pm
    • Reply

    Tuberculosis is really a great health problem. I read the total article. In here I saw that how tuberculosis damage our health. So we need to taken step and awareness about tuberculosis.

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