One of the most common parasites, malaria, is said to kill about 1.5–2.7 million people each year, and this number is only expected to rise as the planet warms, creating new breeding grounds for the parasites carrier, the Anopheles mosquito.
The increase of some parasite-related infections can also be attributed to the rapid growth of unplanned cities, which creates additional breeding sites for mosquitoes and parasites or carriers that breed in standing water.
The baby parasites then develop in the gastropod's body, filling its eye-stalks with pulsating brood sacs of larvae.
Those infected by the parasite tend to find the worm emerging on their hands or feet, and report symptoms of extreme pain and burning sensations.
However, in more severe cases, the parasite attacks the body's vital organs, causing severe anemia, loss of consciousness, seizures, coma, and neurological abnormalities.