• The varicella virus has an incubation period of between 10 and 21 days. This means the rash will appear from 10 to 21 days after the virus has infected the patient. • A person infected with the virus is contagious about two days before the rash appears and will continue being so for another four to five days. Children or adults with weakened immune systems can be contagious for longer. • When the blisters have crusted over, they can no longer pass it onto others.
Both of these diseases affect people badly by causing; internal bleeding in the abdomen which can be fatal, as well as headaches, stomach cramps and constipation followed by severe diarrhoea. These diseases can be treated by simply drinking fluids and CLEAN water. Finally, lice are widespread in these
Sailors inadvertently introduced these diseases in 1492, including smallpox, measles, mumps, whooping cough, influenza, chicken pox, and typhus, to the Americas. People who lived in Africa had developed some immunities to these diseases because they had long existed among Europeans and have been exposed to them. However, the Native Americans had no such immunities due to their isolation. Adults and children alike were stricken by several epidemics of the listed viruses, which caused a massive decrease in populations throughout the Americas. In Mexico and Peru, many millions of people died.
It is basically a very bad stomach bug that will have you in the bathroom for long periods of time. 2. Giardia lives inside the intestines of infected humans or animals. Individuals become infected through ingesting or coming into contact with contaminated food, soil, or water. The Giardia parasite originates from contaminated items and surfaces that have been tainted by the feces of an infected person or animal.
WHAT IS IT PART Well the black death is one of the most devastating pandemics in human history, a plague that swept through Europe and Asia which killed millions in the 1300's. A plague is a disease that spreads extremely quickly and kills many people violently. Most scientist think that the Black Death was caused by a type of bacteria called Yersinia Pestis carried by the oriental rat flea. These fleas infested black rats and unfortunately, due to the unsanitary lifestyles of humans during the Middle Ages, these rats were literally everywhere. Once contracted by a human the disease became airborne.
This disease killed tens of thousands of Indians in the New World. Syphilis was the most deadly disease for the Europeans. This was a disease that was transmitted sexually. This was most common with sailors who went long periods of time without women. So once they touched down on land they would contract this disease.
Epidemic Outbreak of “The Herpes Virus” (Assignment #1) Herpes is an infection caused by the etiologic agents Herpes Simplex Virus-1 and HSV-2. HSV-1 is the type generally known for causing oral herpes outbreaks, also known as cold sores or fever blisters. These blisters last from a week to a month, becoming open sores that crust over with scabs. The outbreak following the initial infection (usually a few days to a few weeks afterward) is usually the worst—the ones after that are less painful. Some people actually confuse their mild outbreaks with other skin conditions such as “eczema”.
Other symptoms include stomach pain and tenderness, nausea, anorexia, and occasional fever. Young children, the elderly, and those who are immunocompromised often die from dehydration before the parasite has a chance to attack the liver. Healthy adults can usually survive beyond the initial dehydration and progress into the liver failure stage of Amebiasis, which is difficult and expensive to treat and will ultimately lead to death if left untreated. After breaking through the mucosal lining of the stomach and intestines, the parasite migrates to the liver and begins eating it, causing infected, pus oozing abscesses. Without treatment the abscesses can grow and expand until the liver fails completely.
Marburg is the least fatal with a fatality rate of twenty-five percent, Ebola Zaire is the most fatal with a ninety-percent kill rate. Preston recalls on numerous horrifying accounts of Ebola and the effects on the human body. Ebola symptoms develop anywhere from three to eighteen days starting with a headache rapidly developing into blood clots of all major organs including the brain—rendering the specimen depersonalized and deranged—killing these organs within day. This leads to a “bleed out” in which all orifices of the body excrete blood and fesses . The person/animal is dead within a week of the initial symptoms.
On Washing Hands Response The first time reading On Washing Hands, I really didn’t understand what point Gawande was trying to get across. Gawande was listing a bunch of deadly diseases, and I was wondering how they pertained to washing your hands. As you read further, in the short story, the author mentions two million Americans acquire an infection while they are in the hospital and ninety thousand die of that infection (Gawande 343). The main cause of this is people not washing their hands. It took me a while to piece together all the information.