Cholera Essay

It tropical and sub-tropical climates temperature, humidity, and rainfall work together to create a breeding ground for mosquitoes. Mosquitoes are a host for communicable diseases one in particular is called malaria. Malaria is a parasitic disease that infects a particular type of mosquito, Anopheles mosquitoes, which feeds on humans. People who get malaria are typically very sick with high fevers, shaking chills, and flu-like illness. Although malaria can be a deadly disease, illness and death from malaria can usually be prevented (Global Health - Division of

Tuberculosis has long been a disease that the human culture has been dealing with which entails significant morbidity and mortality worldwide. With dealing with such a horrific disease over the years, discoveries and evolution on the appropriate ways to contain, diagnose, and challengingly treat the disease has changed. One of the most concerning complications of this worldwide public health issue is the ability for it to quickly spread in high populated areas while becoming ever more resistant to forms of treatment not available in all locations around the world. This is a serious public

This mode of transmission, like malaria, can leave the host deadly sick. Its a cycle, with the parasite in the host, a mosquito will carry the blood with the parasite and inject it into a different host.

P. falciparum life cycle is comprised of two hosts. A P. falciparum carrier female Anopheles mosquito injects sporozoites into the human, infecting their liver cells. Once there infection and damage to red blood cells is critical to the parasites survival. Because red blood cells transport oxygen all over the body, their destruction by P. falciparum causes basic functional devastation to the host.

Causes: Cholera is caused by the bacterium Vibrio cholerae. The bacteria releases a toxin that causes increased release of water from cells in the intestines, which produces severe

In the article” When mosquitoes were killers in America” by Lauren Tarshis, there is evidence that discussed how mosquitoes were far more than a nuisance. The article talked about the symptoms of having malaria. Tarshis said,”Those who become sick get high fevers, bone - rattling chills, and painful muscle aches.” It must have been very painful for people in the olden days who had malaria. The current generation is very lucky because there are medicines that reduce pain. Malaria is a deadly disease caused by mosquitoes sucking blood and transferring the blood to another human's body. Tarshis talked about how many people die in a year due to mosquitoes. The article says” In this way, bite by itchy bite, 212 million people are infected with malaria

Between the 1830’s to 1860’s, cholera spread into the United States from India by trade routes. Cholera is an acute diarrhoeal infection caused by drinking or eating material that is infected with Vibrio cholerae. Cholera causes watery diarrhoea, but can show days later or never show

Mosquitoes pass malaria to humans through their salivary glands. Once the parasites have entered the blood stream, they go to the liver. In the liver they mature and undergo reproduction, forming merozoites. These merozoites enter the blood stream and inject themselves into red blood cells. Once inside the blood cells, they reproduce rapidly and within forty-eight to seventy-two hours, the blood cell bursts, releasing hemoglobin into the blood stream. It is the destruction of these blood cells and the hemoglobin released into the blood stream that actually causes most of the symptoms.

Having Diarrhea for a prolonged amount of time causes dehydration and leads to a loss of electrolytes in the body. This loss causes an imbalance in electrolytes and body and can be fatal. According to Biology, people acquire Cholera by drinking contaminated water which contains human feces and is generally in poorer areas of the world. The bacterium begins by forming a film around the intestines and also produces a toxin. This toxin is an enzyme that modifies the receptors of the cells which constitute the intestines, which happen to regulate salt and water secretion. The toxin which modifies the G-proteins in a cell makes it unable to utilize GTP which keeps the cell in its active form (Campbell,

Infectious disease are diseases or illnesses caused by micro-organisms that become harmful in the body, these micro-organisms are called pathogens. Pathogens are any organism that cause disease, these can include bacteria, viruses and fungi. Not all the micro-organisms mentioned above are harmful to the body, although, under certain conditions such as an immunocompromised individual or the age of a person, can produce an onset of signs and symptoms of an infectious disease. Infectious diseases are communicable, which means they can be spread from person to person, either through direct contact or through bodily fluids. Infectious diseases can also be spread infected vectors which are inhaled or

Vibrio cholerae is a bacterium that infects the intestines of humans (CDC, 2016). While there are several strains of vibrio cholerae, only two types have been known to cause cholera outbreaks and only one (type O1) is responsible for outbreaks globally (WHO, 2015). Cholera infection is an acute diarrheal disease (CDC, 2016). It is extremely virulent and can affect children and adults with equal severity if left untreated (WHO, 2015). Vibrio cholerae has a short incubation period of 2 to 5 days, an aspect of the disease that leads to severe patterns of outbreaks (WHO, 2015).

Her infection began when she was bitten by a mosquito which was seeking her protein-rich blood to nourish its eggs. As part of the process of sucking the droplet of blood from the girl, the mosquito, simultaneously injected saliva to ease the flow of blood into its proboscis. Malaria-causing pathogens gathered in the mosquito’s salivary glands and traveled into the girl’s body. Once in the body, the wormlike parasites moved to the girl’s liver to embed themselves allowing them to feed and multiply. By the time a week had passed, each parasite had consumed an entire liver cell and had replicated upwards of 40,000 times. A short time later the infected cells had exploded and the parasites had reentered her bloodstream. Now showing symptoms

Almost 100 countries worldwide are still affected by cholera and it’s virtually impossible to completely prevent an outbreak. If left alone, this rapidly infectious disease can cause many fatalities. However, improved methods for surveillance, diagnosis, and treatment, paired with higher standards of sanitation and personal

The disease, cholera, is an infection of the intestines, caused by the bacterium Vibrio cholerae. As stated in Microbes and Infections of the Gut, the bacterium is “a Gram-negative, comma- shaped, highly motile organism with a single terminal flagellum” (105). Cholera is characterized by the most significant symptom that presents with the disease, diarrhea, and victims can lose up to twenty liters of body fluids in a day. Cholera can be a serious disease, due to the serious dehydration that can occur, but it is only fatal if treatment is not administered as soon as possible. This research paper includes information on the causes of cholera, symptoms, ways of treatment, studies of treatments, complications that may occur, the

The term virulence is one that describes the amount of damage or harm an organism does to its host. Paul Ewald, a pioneer of evolutionary biology, has discovered how virulence is tied up with the type of transmission method. There are different degrees to virulence from harmless pinworms to extremely dangerous Ebola. Ewald believes that organisms that rely on close proximity for transmission need a host that is healthy enough to be mobile. These microbes depend on the host for easy access to new hosts. This explains why people who have the cold are still able to get up and do things even though they are ill. On the opposite end of the spectrum are diseases and organisms that don’t need its host to get around. In the case of malaria it incapacitates