{"id":180045,"date":"2024-12-16T10:22:03","date_gmt":"2024-12-16T15:22:03","guid":{"rendered":"https:\/\/inrs.ca\/?post_type=topic_post&p=180045"},"modified":"2024-12-16T10:28:15","modified_gmt":"2024-12-16T15:28:15","slug":"why-are-some-diseases-only-caught-in-the-tropics","status":"publish","type":"topic_post","link":"https:\/\/inrs.ca\/en\/inrs\/newsroom\/thematic-reports\/our-monthly-science-question\/why-are-some-diseases-only-caught-in-the-tropics\/","title":{"rendered":"Why are Some Diseases Only Caught in the Tropics?\u00a0"},"content":{"rendered":"\n

The scientific question of the month demystifies complex topics with simple, effective answers.<\/em><\/strong>
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Tropical diseases are caused by pathogens like bacteria, parasites, fungi, and viruses. Beyond their specific symptoms and the ways they\u2019re transmitted, they share a common characteristic: they thrive in tropical regions. But why?\u00a0\u00a0<\/p>\n\n\n\n

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An abundance of vectors <\/strong>
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Mosquitoes, insects, animal droppings\u2026 Hosts like these make ideal modes of transmission for a plethora of diseases.<\/p>\n\n\n\n

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A favourable climate\u00a0<\/h2>\n\n\n\n

By definition, tropics are hot and humid. Some vectors for disease do very well in this climate, where intense rainy seasons and a lack of frost or ice allow populations to boom. What\u2019s more, heavy rainfall intensifies soil mixing, and therefore the spread of pathogens from the water.<\/p>\n<\/div>

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Does climate change also play a role?<\/h2>\n\n\n\n

Absolutely! More frequent extreme weather events, like floods, increase soil mixing. For instance, flooding creates pools of stagnant water, which are the perfect place for mosquitoes to lay their eggs. Flooding also makes it more difficult to bring medical supplies to certain affected regions.<\/p>\n<\/div><\/div>\n\n\n\n

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Accounting for living conditions <\/strong><\/h2>\n\n\n\n

Living conditions, also called social factors, certainly play a part. They don\u2019t cause tropical diseases directly, but they do increase their prevalence and complicate control efforts. Population density in tropical areas, limited access to healthcare, and potentially complicated sanitary conditions all make people more vulnerable.<\/p>\n<\/div>\n<\/div>\n\n\n\n

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Fighting tropical diseases
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These diseases, which are often concentrated in developing countries or affect more vulnerable populations, do not always receive the attention or funding they need to be prevented and eradicated. Yet their health, social, and economic consequences represent a real threat to the health of billions of people. <\/p>\n\n\n\n

As North America\u2019s only member of the Pasteur Network<\/a>, INRS is highly involved in research efforts to improve global health. Its Armand-Frappier Sant\u00e9 Biotechnologie Research Centre (AFSB)<\/a>brings together dozens of experienced specialists who contribute to research efforts in the field of neglected tropical diseases. <\/p>\n\n\n\n

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Travaux de recherche en utilisant les technologies de microscopie \u00e9lectronique \u00e0 transmission et \u00e0 balayage.<\/figcaption><\/figure>\n\n\n\n
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\u00c9tude des facteurs de transcription et des m\u00e9canismes \u00e9pig\u00e9n\u00e9tiques.<\/figcaption><\/figure>\n\n\n\n
\"Laboratoire
Le Laboratoire de niveau de confinement 3 (NC3) est un laboratoire de pointe qui permet d\u2019effectuer des recherches sur plusieurs pathog\u00e8nes \u00e0 haut risque en culture cellulaire et ce, dans des conditions infectieuses proches de celles des maladies qu\u2019ils causent. <\/figcaption><\/figure>\n<\/figure>\n\n\n\n
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