Life cycle no relation infection
Cause
Life cycle
The life cycle in sheep is typical of the disease. The female flies lay their eggs on the sheep in damp, protected areas of the body that are soaked with urine and feces, mainly the sheep's breech (buttocks). It takes approximately eight hours to a day for the eggs to hatch, depending on the conditions. Once hatched, the larvae then lacerate the skin with their mouthparts, causing open sores. Once the skin has been breached, the larvae then tunnel through the sores into the host's subcutaneous tissue, causing deep and irritating lesions highly subject to infection. After about the second day, bacterial infection is likely and, if left untreated, causes bacterial bloodstream infections or sepsis. This leads to anorexia and weakness and is generally fatal if untreated.Human vectors
There are three main fly families causing economically important myiasis in livestock and also, occasionally, in humans:
Calliphoridae (blowflies)
Some examples include Calliphora vomitoria, Calliphora vicina, and Cordylobia
Oestridae (botflies)
Sarcophagidae (fleshflies) Sarcophaga barbata are usually found in dead and rotting meat and animal excrement, which are prime environments for them. This is because their larvae are facultative parasites, as they feed on organic tissue and use the hosts' oxygen reserve.Other families occasionally involved are:
Anisopodidae
Piophilidae
Stratiomyidae
Syrphidae
no relation