Human milk

Human Botfly (Dermatobia hominis) is a species of fly from the family Oestridae that is well-known for its parasitic interactions with humans. This species is native to the Americas, from southeastern Mexico to northern Argentina, Chile, and Uruguay.

Life Cycle

The life cycle of the Dermatobia hominis is unique among insects. The adult botfly does not directly deposit its eggs on hosts. Instead, it captures a blood-feeding insect, such as a mosquito or tick, and attaches its eggs to the body of this intermediate vector. When the mosquito or tick feeds on a human or animal, the heat from the host triggers the botfly eggs to hatch. The larvae then enter the host's body through the bite wound.

Parasitism

Once inside the host, the larvae of the human botfly undergo their development, causing a condition known as myiasis. The larvae feed on the host's tissue, causing a painful, swollen lesion. The lesion typically has a central punctum, which is an opening in the skin that allows the larva to breathe while it feeds. After several weeks, the larva will drop out of the host to pupate in the soil.

Treatment

Treatment for human botfly infestation typically involves the physical removal of the larva. This can be achieved through a variety of methods, including surgery, the application of substances that cause the larva to emerge, or the use of forceps to extract the larva. In some cases, antibiotics may be prescribed to prevent secondary bacterial infections.

Prevention

Prevention of human botfly infestation primarily involves avoiding areas where the flies are known to be present, particularly during their peak activity periods. Wearing protective clothing and using insect repellent can also help reduce the risk of infestation.

See Also

• Myiasis
• Oestridae
• Parasitism