What is a human flea?

Pulex irritans or human flea is a small insect on blood that can be found on almost every continent. During the Middle Ages it was a common inconvenience in rich and poor households, but by 2011 it was rarely found by 2011. These insects often irritate the skin when they bite human hosts. They are also able to spread serious illnesses from one person to another.

Human flea is less common than other varieties such as rats or cat fleas. This species often behaves around pigs. Human fleas are mainly preferred by pigs and human blood, but also feed on the blood of dachshunds, foxes, skunks and some other wild mammals.

Pulex irritans Fleas are usually between six and one eighth inch long (1.587 to 3.175 mm). Have dark brown or black bodies, with long, barbed legs; short, connected antennas; flattened parties; And no wings. They move from one place to another, browsing or jumping. Human flea can jump jaKO MUCH as 100 times larger body size. Their saw similar mandibles plunges into the host meat and releases an anticoagulant into the skin to prevent blood from being clotting like insects. Then they suck blood from a host of human or animals. Blea can live months or years without feeding unless affordable hosts are available.

female fleas laid eggs on the bodies of their hosts. The eggs are not barbed or sticky and do not follow the host, so they often fall from the animal and its bedding. The eggs hatch into white, worms similar to larvae. Large human fleas feed on adults and organic animal material.

Young fleas threw their exoskeletons three times before entering the navel phase. They mature inside silk cocoon and act as adults. The maturation process usually takes three to four weeks, depending on the climate availability of the host.

human fleas bite usually afterThey leave small, red, itchy brands on hosts when they feed on. Some people are more sensitive to flea bites than others. Anticoagulant in saliva with human fleas can cause serious itching or rash. Scratching fleas bites can lead to secondary infections.

Pulex irritans is able to spread the bacteria of yersinia pestis from rats to people. This bacterium causes a bubonic plague, a serious illness that killed approximately 200 million people in a pandemic called black death during the 14th century. Since 2011, plague focuses have occurred, but antibiotics have significantly improved the rate of survival of infected patients.