When a mosquito with infective stage larvae bites a person, the parasites are deposited on the persons skin from where they enter the body. The larvae then migrate to the lymphatic vessels where they develop in to adult worms in the human lymphatic system. The spreading continues as non infected mosquitoes bite someone with larvae in their blood, then proceed to bite someone else, thus introducing larvae into their skin and into their body. The people most at risk for this disease are those located in underdeveloped regions found in South America, Central Africa, India, Asia, the Pacific Islands, Brazil, and the Carribean, just to name a few. Nations found to be endemic tend to be tropical or subtropical due to the optimal habitat for the vectors of LF.
There are several types of parasites such as Ectoparasite- which is a parasite that lives on the host’s surface, examples will be hair and body lice and mites. Endoparasites – One that lives inside the host, for example heartworm, tapeworm and flatworms. Epiparasite- This one feeds on another parasite. For example, fleas and ticks. 1.2 Identify common illness and infections caused by bacteria, viruses, fungi and parasites.
SZT Task # 3 Measles The measles, also known as rubeola, is a viral disease that affects the respiratory system. Measles is caused by the paramyxovirus family. The virus grows in the cells that line the back of the throat. (WHO) The measles disease is highly contagious and is transmitted by respiration either by indirect contact such as aerosol exposure or direct contact such as exposure to fluid in an infected person’s mouth and nose. (Wikipedia contributors) The virus also remains alive and contagious on exposed surfaces and in the air for up two hours.
Crohn’s Disease Anatomy & Physiology Ashley Goodnight Crohn’s Disease Anatomy & Physiology Ashley Goodnight Abstract I am writing my paper on Crohn’s disease. In this paper you will find information on this disease and how people are affected. I will be explaining sign and symptoms, who may be at risk, and treatment options. Crohn’s disease is a chronic disorder of the digestive system. Crohn’s disease can affect any area of the gastrointestinal system from the mouth to the anus.
The plague bacilli are little toxin factories. The heat of the human body signals the thousands of bacilli injected by the flea to go into a special production. If the immune system manages to kill some, the germs release more poisons from their dying bodies. Meanwhile, they work their way into the fluid drainage system to travel. If the flea bite was on the leg, the lymph drainpipes carry plague to the lymph nodes in the groin.
Disease Research Short Paper [pic]Disease Topic : elephant disease. Etiology it is caused by parasitic worms invading the body's lymphatic system - the network of vessels carrying infection-fighting cells. The worm is spread by mosquitoes, who pass it on when they take blood from humans. The bacteria-containing worms lodge in the lymphatic system, producing millions of minute larvae which spread throughout the bloodstream. It is unclear whether the swelling, or lymphoedema, that occurs results from the obstruction of the lymphatic vessels or from the response of the body's immune system to the worms and the bacteria within them.
Crohn’s disease is an ongoing inflammation bowel disease of the digestive tract, also referred to as the gastrointestinal (GI) tract that can cause ulcerations which is breaks in the lining of the small and large intestines. Crohn’s disease is named after the physician who described the disease in 1932 (www.gicare.com). Crohn’s disease can affect any area of the GI tract, from the mouth to the anus, but it most commonly affects the lower part of the small intestine, called the ileum. The swelling extends deep into the lining of the affected organ. The swelling can cause pain and can make the intestines empty frequently, resulting in diarrhea.
The skin rash evolves uniformly in all areas. Patients are contagious until the scabs fall off. The differential diagnosis includes monkeypox, measles (early stages), secondary syphilis and chickenpox. One very important part of the diagnosis is differentiating smallpox from chickenpox. This can be done by noting that chickenpox appears mostly on the abdomen, while smallpox appears mostly on the
The first two stages exo-erythrocitic cycle and the erythrocytic cycle occur in the human host, whereas the final sporogonic stage continues in the mosquito. The life cycle starts when the mosquito infects the human blood with the malaria parasite. The plasmodium travels to the liver via the bloodstream. Furthermore, the parasites multiply in the liver and proceed to invade red blood cells; moreover, parasites enter a phase of sexual reproduction that continues in the mosquito's gut. The parasites complete sexual reproduction and then rapidly multiply to produce many more parasites that are readily transmitted to other human hosts.
First, it was from the bacterium known as Yersinia pestis. (Wade, 2010) There are three different forms of the plague. The first is the Bubonic Plague, which is the most common form, known for its buboes, which are painfully swollen lymph nodes in the armpit, groin or neck. Septicemic plague, which spreads in the bloodstream, comes either via fleas or from contact with plague-infected body matter. Lastly there is the pneumonic plague, the most infectious type, is an advanced stage of bubonic plague when the disease starts being passed directly, person to person, through airborne droplets coughed from the lungs.