Explain the transmission and effects of malaria based on the provided text.

Malaria is introduced as a serious infectious disease, affecting both humans and animals. It is specifically transmitted by the female Anopheles mosquito, which thrives in hot and wet environments globally.

The Anopheles mosquito has a long, straw-like proboscis used for drawing blood. Only the female mosquito feeds on blood, while males consume plant-based liquids.

The actual cause of malaria is a microscopic protozoan parasite. This parasite is introduced into the human body when an infected female Anopheles mosquito bites a person.

Upon injection, these protozoan parasites directly enter the bloodstream. They then travel to the liver, where they multiply rapidly.

After multiplying in the liver, the parasites re-enter the bloodstream. They then begin to infect and consume red blood cells, which are vital for transporting oxygen throughout the body.

The destruction of red blood cells by the parasites leads to a significant lack of oxygen in the body. This oxygen deprivation causes the infected individual to feel extremely unwell, experiencing symptoms like severe headaches, vomiting, and potentially dangerous convulsions.