Transmission
Tuberculosis is an air-borne disease, hence, it can be passed from an infected person to a healthy individual through coughing, sneezing and other salivary secretions. Tuberculosis is caused by the transfer of Mycobacteriun Tuberculosis (M. Tuberculosis) also known as Tubercle Bacillus, a small particle of 1-5 microns in diameter, due to the small size, when an infected person sneezes or coughs, about 3,000 particles are expelled. M. Tuberculosis responsible for tuberculosis is able to stay in the air for a long period of time (about 6hoursAnother way of acquiring Tuberculosis is by drinking unpasteurized milk, milk straight from cow, although this is not a common mode of transmission, it can be found in rural areas. Ingestion of contaminated cow milk transmits Mycobacterium Bovis, the animal form which is still potent enough to cause tuberculosis in humans. ). Tuberculosis transmission is affected by exposure, socioeconomic status of person, proximity, immune status of uninfected individual (%&&%&? CDC).
Tuberculosis is sometimes called disease of the poor, poverty restricts lots of people to live in a small space, leading to overcrowding. Smaller spaces increase the possibility of M. Tuberculosis to spread and infect an individual. Also immunocompromised individual are susceptible to acquiring tuberculosis. For example, HIV patients, malnourished individual are more susceptible to tuberculosis compared to the average healthy individual. People that are constantly in close range to infected individual are at higher risk of getting infected because, they are more likely to share and breathe the same air. This will lead to inhalation of M. Tuberculosis and might eventually lead to tuberculosis.
Epidemiology
Tuber...
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...macrophage to kill bacteria that might have escaped from granuloma. Latent TB is characterized by absence of disease activity. It can be detected by TBT and Interferon-γ release assay (IGRA) and chest x-rays. The chest x-ray usually result normal due to the inactivity of the disease. TNF-α helps contain latent TB infection and keeps it from becoming active TB. Patient that have been treated withTNF antagonist are at greater risk of reactivation of LTBI to active TB
Active TB patients are IGRA positive and are symptomatic. The granuloma model: macrophages get infected in non-activated macrophages, necrosis occurs, lymphocytes also activate macrophages. MTB continue to grow and spread. The tubercles bexome liuqified and extracellular bacterial growth ensue, releases liquifed caseous material into the bronchiole causes causing and this can be transmitted tooter people.
Tuberculosis is an infectious disease caused by the bacteria Mycobacterium tuberculosis (Infectious Disease – The Never-ending Threat). It is acquired by inhalation and is spreadable. The City of Toronto in accordance with Toronto Public Health have in place different specialty teams in regards to Tuberculosis (TB) who work together to provide support for individuals with TB as well as their families and to help prevent the spread of TB in Toronto (City of Toronto). Specifically, Toronto Public Health has a designated homeless and corrections team who manage TB disease and infection within the homeless/under-housed and corrections populations. Within this program, they use many environmental guidelines to access and diminish in the
Signs and Symptoms of Active Tuberculosis Mycobacterium tuberculosis (MT) is a slender, rod-shaped, aerobic bacillus which causes tuberculosis. Tuberculosis (TB) is an airborn infection which is transmitted via inhaling droplet nuclei circulating in the air. These droplets are expelled from the respiratory secretion of people who have active TB through coughing, sneezing, and talking (Porth, 2011). Some bacilli stay in the upper airway and are swept out by mucus-secreting goblet cells and cilia on the surface of the airway.
A reaction to a tuberculin skin test is how most people find out if they have tuberculosis. It takes 48 hours after the test for a reaction to develop, which is a red bump where the needle went in. Doctors can diagnose tuberculosis from the results of a chest x-ray o...
The rail market continued to grow and by the 1860’s all major cities within the United States were connected by rail. The main diseases that showed the most virulence during the time were cholera, yellow fever and consumption, now known as tuberculosis. The 9th census mortality data showed that 1 out 7 deaths from disease were caused by tuberculosis and 1 out of 24 disease deaths were resulting from cholera. . Until the 1870s the general consensus of the spread of disease through population was still the primitive idea that it came from the individual and not specifically the pathogen.... ... middle of paper ... ...
One of the first steps to treating Tuberculosis is identifying which form has developed in the body. The two forms that could progress in the body are latent Tuberculosis infection and active Tuberculosis infection (CDC, Morbidity and Mortality Weekly Reports). Latent Tuberculosis is the dormant form of the bacteria, meaning that it is inactive and doesn?t cause an infectious reaction in the body. Even if the latent form enters the body, treatment should be sought (CDC, Morbidity and Mortality Weekly Reports). Latent Tuberculosis can become active Tuberculosis easily though, especially if the immune system is compromised by another infection, like HIV (CDC, Morbidity and Mortality Weekly Reports). Active Tuberculosis infects the body immediately. Symptoms show in the body meaning the bacteria is effecting the cells of the body. Identifying the form is important because treatment is dependent upon it. Testing for TB involves a skin test, usually within seven work-days of contact with the bacteria. Without knowing what is in the body, the drugs won?t be as effective and might even cause drug-resistance.
breathe the same air can become infected with the TB germ. People who do work
Hepatitis B is a DNA viral infection that causes damage and inflammation to the liver. It was first discovered in 1965 by Dr. Baruch Blumberg. The HBV virus is very contagious and is even thought to be the most serious form of viral hepatitis and the most common viral infection on Earth. “HBV is 100 times more infectious than HIV.” (Green, 2002, pg. 7) The virus can survive for about one week outside the body on a dry surface. According to Green (2002, pg. 7), “One in twenty Americans has been infected with the virus at some point in their lives.” Between the ages of 15-39 is when 75% of new HBV infections occur, according to Green (2002, pg.8).
Bacterial resistance to antibiotics has presented many problems in our society, including an increased chance of fatality due to infections that could have otherwise been treated with success. Antibiotics are used to treat bacterial infections, but overexposure to these drugs give the bacteria more opportunities to mutate, forming resistant strains. Through natural selection, those few mutated bacteria are able to survive treatments of antibiotics and then pass on their genes to other bacterial cells through lateral gene transfer (Zhaxybayeva, 2011). Once resistance builds in one patient, it is possible for the strain to be transmitted to others through improper hygiene and failure to isolate patients in hospitals.
Tuberculosis is marked by symptoms such as a hollow cough, an emaciated body, nightly weats and daily intermittent fevers. Tuberculosis was common amongst working classes because it was contracted through pestilent, infected air, manifesting itself in places surrounded by swampy land. Geography plays an important role in the transmission of tuberculosis. The working classes could not afford to live in areas that were free of the epidemic. The upper classes did contract consumption, although they sought the medicine of the day which often brought them to health. The most popular remedy was a sea voyage in a warm climate, but also pure air and the most nutritious food were encouraged. Accordi...
Tuberculosis (TB) has various infections that can completely immobilize one's body. Its infections are varied and it generally eats away lung tissues and forms boils that releases pus. As disease proceeds, lungs would mercilessly be devoured and the victim will become pallid and fragile, coughing up blood and becoming unable to breathe. The word consumption originated from this sickness because o Infections in digestive tract can cause serious vomiting, bloody diarrhea, and acute pain. Aside from lungs, it can also infect bloodstream and even kidneys. TB can also cripple people's nervous system and their bones. Basically, it can destroy one's body completely. Surprisingly, the germ causing it (Mycobacterium tuberculosis) is extremely small.
It is highly infectious, and can be passed on by contaminated particles in the air (Lerner and Lerner). However, since there was limited technology during the era, there were many different theories regarding the cause. Many considered the possibility of emotional causes. “Limited scientific knowledge regarding disease pathology opened the door to inductive speculation that tuberculosis might be caused directly or indirectly by the emotion, imagination, and creativity so obvious in its most famous victims.” (Boan 705-709) People believed that an individual could get the disease just from being too artistic or creative. Because of this, many strayed away from being open to artistic skills, or expressing creativity. In addition, Tuberculosis was also being associated with poverty and the environment. “…tuberculosis was also considered to be a sign of poverty or an inevitable outcome of the process of industrial civilization. About 40% of working-class deaths in cities were from tuberculosis.” ("Tuberculosis in Europe and North America, 1800–1922") There were many possible causes that the people of the Victorian Era were trying to figure out, though they were about to start a new journey of experiencing the actual effects of this unmerciful
Tuberculosis is transmitted by inhalation of aerosols containing the tubercle bacilli. The required inoculum size for infection is usually high, but easily occurs with exposure to a patient who is currently infected. The products of dried aerosols, droplet nuclei, are particularly infectious because they remain in the air for an extended time, and upon inhalation easily move to the alveoli. The severe damage related to infection is caused by the reaction of the host. The tuberculosis infection has two phases, primary and secondary.
Tuberculosis has plagued mankind for a long time. This disease, which was previously believed to be eradicated, has once again shown up and begun attacking the lives of many humans. Tuberculosis infects a third of the population and kills a fraction of them. Many approaches have been used including different varieties of infection control, bodily defenses, and treatments to try to protect humans from tuberculosis. The best way to prevent tuberculosis infections is to contain the source of tuberculosis. The most common source of tuberculosis infection is from infected humans. By diagnosing, containing, and treating people with latent tuberculosis before they get active, contagious tuberculosis, tuberculosis can be quickly contained. Once someone has been diagnosed with TB, they should be placed under isolation.
Researchers have also identified a list of other factors associated with TB transmission such as environmental, organism and host factors, but these unfortunately, are outside the scope of the present paper. 16
Syphilis is a sexually transmitting infection caused by Treonema pallidum, a gram negative, and anaerobic spirochete bacteria 1. Syphilis is thought to have been brought to Europe by Columbus and his sailors in the 1500’s 1. The disease is characterized by four different stages with varying symptoms depending on the stage that the disease is in1. Often syphilis is presented with another sexually transmitted infection such as chlamydia. Public education regarding safe sex is important for the prevention of this sexually transmitted infection.