DD-395ScienceFiled Last updated

Blood Destruction

Short answer: Malaria still causes hundreds of thousands of deaths a year, about 95% of them in the WHO African Region. Ronald Ross's proof of the mosquito cycle won the 1902 Nobel Prize, inherited traits like sickle cell show how the disease has shaped human genes, and two vaccines are now in use.

VideoWrite-up1 sources

In collections:Inside the Body

What should you know about Blood Destruction?

Quick facts. Each one stands alone and has a stable ID you can cite.

  1. Plasmodium parasites.

    DD-395-F01 · Write-up · Exhibit A (The current toll)
  2. Female Anopheles mosquitoes.

    DD-395-F02 · Write-up · Exhibit B (Nobel-winning detective work)

Video transcript: Blood Destruction: Malaria Spreads Through the Bite of Infected Female Anopheles Mosquitoes

Did you know? Mosquitoes transmit malaria through the bite of an infected female anopheles mosquito. When the mosquito bites a human, it injects saliva containing the plasmodium parasite into the bloodstream. The parasite travels to the liver, where it matures and multiplies, before re-entering the bloodstream to infect red blood cells. This cycle causes the destruction of red blood cells, leading to symptoms such as fever, chills, headaches, and muscle pain. Severe cases can result in organ failure, anemia, or even death. NOW YOU KNOW!

Burned-in captions, read frame by frame (see transcript.md) · 25.5s Reel ·

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Blood Destruction: Malaria Spreads Through the Bite of Infected Female Anopheles Mosquitoes Instagram Reel · · 25.5s

The write-up

Malaria remains one of the deadliest infectious diseases, concentrated overwhelmingly in Africa, and its long fight with humans has reshaped both medicine and the human genome.

  1. Exhibit A

    The current toll

    In 2024 an estimated 282 million malaria cases worldwide led to about 610,000 deaths, and the WHO African Region accounted for about 94% of cases and 95% of deaths.

  2. Exhibit B

    Nobel-winning detective work

    Ronald Ross proved the parasite's life cycle in mosquitoes in 1897 in Calcutta and received the 1902 Nobel Prize, while Tu Youyou received the 2015 Nobel Prize for her work on malaria.

  3. Exhibit C

    Written in our genes

    Several inherited traits give some resistance to malaria, including sickle cell trait, thalassaemia traits, G6PD deficiency and the absence of Duffy antigens on red blood cells.

  4. Exhibit D

    Two vaccines in use

    As of February 2026, two malaria vaccines, RTS,S and R21/Matrix-M, had completed clinical trials and were in use, with R21 showing 77% efficacy in initial trials.

Questions people ask about Blood Destruction

What causes malaria?

Protozoa.

Source: Write-up · Exhibit A (The current toll) · Wikipedia: Malaria

Which mosquitoes spread it?

Vector.

Source: Write-up · Exhibit B (Nobel-winning detective work) · Wikipedia: Malaria

Where do parasites go first?

Multiply.

Source: Write-up · Exhibit A (The current toll) · Wikipedia: Malaria

What cells do they destroy?

Bloodstream.

Source: Write-up · Exhibit C (Written in our genes) · Wikipedia: Malaria

A common symptom?

Cyclic.

Source: Write-up · Exhibit A (The current toll) · Wikipedia: Malaria

Test Your Knowledge

All quizzes →

5 questions, all from this case file. Answers are revealed instantly.

  1. What causes malaria?

    1. Plasmodium parasites
    2. A virus
    3. Bacteria
    4. Fungi
    Show the answer

    Answer: A. Plasmodium parasites Protozoa. Source: Write-up · Exhibit A (The current toll) · Wikipedia: Malaria

  2. Which mosquitoes spread it?

    1. Female Anopheles
    2. Male Aedes
    3. All flies
    4. Ticks
    Show the answer

    Answer: A. Female Anopheles Vector. Source: Write-up · Exhibit B (Nobel-winning detective work) · Wikipedia: Malaria

  3. Where do parasites go first?

    1. The liver
    2. The brain
    3. The lungs
    4. The skin
    Show the answer

    Answer: A. The liver Multiply. Source: Write-up · Exhibit A (The current toll) · Wikipedia: Malaria

  4. What cells do they destroy?

    1. Red blood cells
    2. Neurons
    3. Bone
    4. Hair
    Show the answer

    Answer: A. Red blood cells Bloodstream. Source: Write-up · Exhibit C (Written in our genes) · Wikipedia: Malaria

  5. A common symptom?

    1. Fever
    2. Rash only
    3. Hair loss
    4. Itchy eyes
    Show the answer

    Answer: A. Fever Cyclic. Source: Write-up · Exhibit A (The current toll) · Wikipedia: Malaria

Cite this case file

Easterling, Marcus. "Blood Destruction." The Detail Department (DetailEnjoyer), case file DD-395, last updated Nov 27, 2024. https://detailenjoyer.com/case/blood-destruction/

Permalink: https://detailenjoyer.com/case/blood-destruction/ · Last updated

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