How will climate change affect the spread of tropical diseases?

Many tropical diseases such as malaria, Chikungunya and dengue are transmitted to humans via mosquitoes and other carriers known as vectors. These vector-borne diseases continue to have a major impact on human health in the developing world: each year, more than a billion people become infected and around a million people die. In addition, around one in six cases of illness and disability worldwide arise from these diseases.
Malaria continues to attract the most attention of all the vector-borne diseases by virtue of causing the greatest global disease burden. However, others such as dengue are not only resurgent in some regions, but threaten a vast proportion of the world’s population.

Climate change remains a substantial threat to future human health and since the behaviour of disease carriers like mosquitoes is known to be extremely sensitive to temperature and rainfall, it seems unquestionable that climate change will affect many, if not all, of these diseases. What is less clear, however, is the extent to which climate increases the risk of becoming infected in certain regions compared to other factors such as poverty or fragile health systems.

In addition, although the number of new cases of diseases such as malaria appears to be declining worldwide, it is still increasing in many regions for a variety of reasons; the continued spread of insecticide resistance, changes in land use etc. Which of these factors will be most influential over the coming decades remains a moot question as of now.

4 thoughts on “How will climate change affect the spread of tropical diseases?”

  1. It is informative and helpful, thank you. But, Can i get tips for geography optional preparation in these mails?

  2. Hi!! I’m appearing for upsc this year.

    Can anybody tell me what should be studied for geography? NCERT is done and the videos by Rajtanil Solanki are useful.

    Are text books required along with NCERTS for prelims? If yes, then please suggest

    What books for current affair except newspapers?

    Please suggest Books for ancient India & culture?

    • Hi Aditi,

      Geography core concepts is tested, always questions are concept oriented, NCERT 11 and 12th books are best for that, also map pointing questions are increasing, like location of hills, national highways and world geo like, arrange capitals from north to outh etc, so atlas revision will help a lot, now that you completed basics, I suggest you attemp MCQ’s as many as possible, from institute GS papers of this year.

      Text books for geo or for all subjects ? her is the link to Prelims books list

      For current affairs, any institute material will do, preferably Vision IAS current affairs material. Also go through Economic survey and India year book.

      Hope this helps you 🙂 all the best 🙂


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