5 most common infectious diseases in the world

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According to the World Health Organization (WHO), as of 2011 there were 12,420 different diseases, and health related ailments. In other words, you should be thanking your immune system, and modern medicine before you go to sleep each, and every night.

Of those numerous diseases, perhaps none is more common than infectious diseases, which are defined by WHO as “any pathogenic microorganism that can be spread directly or indirectly from one person to another”. In this article we will be looking at 5 most common infectious diseases in the world.

1) Hepatitis B

According to current statistics, Hepatitis B is most common infectious disease in the world, affecting some 2 billion people, that's more than one quarter of the world's population. This disease, which is characterized by an inflammation of the liver that leads to jaundice, nausea, and fatigue, that can lead to a long-term complications such as cirrhosis of the liver or even liver cancer.

2) Malaria

Malaria, a mosquito borne disease that tends to affect children the most in tropical, and subtropical climate, affect more than 500 million people annually, and result in anywhere between 1 million, and 3 million deaths. Behind hepatitis B, it appears to be the second most common infectious disease, and it is certainly one if the most deadly on an annual basis.

3) Hepatitis C

Hepatitis C is a less common, and less severe of hepatitis, but it almost always develops into a chronic, not acute, condition, unlike hepatitis B.

4) Dengue

It's at times like this that we cause mosquitoes because, a very specific type of mosquito (Aedes aegypti) is responsible for the transmission of dengue to approximately 50 million people each year, and it is mostly common in Africa, and Asia.

5) Tuberculosis

Tuberculosis is caused by bacteria found in the lungs that can cause chest pain, and bad cough, as well as lead to a number of other nasty side effects.

Source: https://www.google.com/url?q=https://www.fool.com/investing/general/2013/12/29/the-5-most-common-infectious-diseases.aspx&sa=U&ved=2ahUKEwj9mbPctIb0AhUP1BoKHXcLB80QFXoECAEQAg&usg=AOvVaw1Yx5zqZFrC8bJdJtwmliNj

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