In this case I'd guess the DOGE cuts to foreign aid are a massive, massive contributor to the problem. A lot of third-world countries heavily relied on USAID et al to keep basic sanitation and healthcare going.
They are. This is why the billionaire tech class is complacent in this disaster. Musk is already a mass murderer due his illegal sabotage of USAID (estimates of 600000 deaths already [1]) this new outbreak adds to his death toll.
[1] https://www.newyorker.com/culture/the-new-yorker-documentary...