The thought of going crazy is a pretty reasonable guess for how rabies torments its victims. The virus enters through a bite or transfer of infected saliva and makes its way through the nerves toward your spinal cord and brain. Obviously, rabies is an extremely deadly virus that affects the nervous system. Immediately after being bitten, you need to seek medical attention or death will come within a week. Rabies is a very fatal virus that, without proper medical attention, will kill its victims very swiftly, but there are ways to help.
During this time, the infected person feels fine and the measles infection and incubation stages are very unnoticeable. The next stage of the measles happens after eight to twelve days. The infected person has symptoms of fever, weakness and loss of appetite. Coughing and running of the eyes and nose are also seen. Now the infection is spreading all over the tissues through out the body.
This part of the essay will give you the who, what, when, where, why, and how of the rabies infection. The infectious disease known as rabies is a virus that spreads from the wound to the central nervous system, causing the body to malfunction until finally crashing down. This virus is a transmittable disease that that runs in both humans and animals. In order for the virus to be transmitted, the saliva from the rabid animal needs to enter the open wound. There are many symptoms that prove that the bitten victim has rabies, one of them being death.
The patient's bloodstream throws clots, and the clots lodge everywhere, especially in the spleen, liver, and brain, then it settle in the victim throat. Bleeding involves the nose, abdomen, and pericardium. Capillary leakage appears to lead to loss of interavascular volume leading the patient to fall in a shock and acute respiratory disorder leaving the patient desperately trying to gasp their breath.The virus kills its victims so quickly, before it even can infect others. The incubation period for the Ebola virus ranges from 2 to 21 days, depending upon the method of infection.
The word plague means a dangerous disease that quickly spreads and causes death. Alexander Yersin identified the cause of the bubonic plague. He discovered that the disease was being caused by a deadly bacterium which he named after himself, Yersinia pestis. Yersin worked with a scientist named Pasteur in France to develop a treatment to fight the plague. Yersin was the first to suggest that rats and fleas were the main cause for the spreading of the plague.
If a person has TB disease, their immune system cannot stop the bacteria become active. People with TB disease get sick and they are able to spread the bacteria to others. Symptoms The symptoms of TB include bad cough which last for 3 weeks or more, chest pain, coughing with blood or sputum, weakness or tiredness, weight loss, no desire for food, chills, fever, and night sweats. Mode of transmission The bacteria which cause tuberculosis are spread through the air. The bacteria can goes in the air when someone with TB coughs, sneezes, speaks, or sings.
The bacterium begins to produce toxins when enough of the bacteria have accumulated in the stomach. It is the toxin produced that causes the disease. The toxin affects the cells of the gastrointestinal tract. This means the affected person does not have ordinary diarrhoea but also losses a large quantity of fluid along with it. Cholera is transmitted through bacteria that are excreted in faeces.
The herpes viruses can do this over and over again. They hide in nerve tissue until prompted to erupt leaving painful ulcers as host tissue is destroyed. Human papilloma virus—HPV--causes genital warts and predisposes its victims to cervical cancer. Likewise, hepatitis viruses, especially hepatitis C can leave a patient vulnerable to liver cancer. Other cancers in humans are also known to be caused by viruses.
Bacot then suggested that fleas might be the carriers of the disease and infected animals while attempting to draw blood. In 1897, P.L. Simond proved that fleas transmitted plague. The clue that led to this discovery were the bites on the legs of victims. They appeared as small grayish spots and the presence of these bites always brought about the bubonic swelling in the affected region of the body.
157-158). M. tuberculosis is skilled at preventing this fusion allowing the bacteria to successfully avoid detection by the immune system (pp. 159-160). Granulomas are collections of macrophages used to separate the body from foreign particles (p. 158). Granulomas containing M. tuberculosis have necrosis, meaning that the cell will eat away and degrade the surrounding tissues (p. 158).