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Chicken Pox (Spread: through direct contact with the rashI, or when a…
Chicken Pox
Spread: through direct contact with the rashI, or when a person with the chickenpox coughs or sneezes and you inhale the air droplets SPREAD: Spread through contamination of food or water and through close contact with an infected person
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Symptoms:
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Itchy rash all over the body, including trank, face, scalp, under the armpits, and even inside the mouth.
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Solution: The chickenpox (varicella) vaccine is the best way to prevent chickenpox. Experts from the CDC estimate that the vaccine provides complete protection from the virus for nearly 98% of people who receive both of the recommended doses. When the vaccine doesn't provide complete protection, it significantly lessens the severity of chickenpox.
Cause: initial infection w/ varicella-zoster virus, contracted from person-to-person contact
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Typhoid
Spread
Today: Spread through contamination of food or water and through close contact with an infected person
Salmonella typhi is passed in feces and sometimes in the urine of infected people, which they can spread it to others through the fecal-oral route, therefore eating food that has been handled by someone who has typhoid fever puts you on risk of becoming infected. In developing countries, most people get infected by drinking contaminated water, the bacteria may also spread through contaminated food or direct contact with someone infected.
IR: Microbes were only discovered in 1864. Before that, there was a common belief that diseases were caused by bad smells and invisible poisonous clouds (miasmas). Such beliefs caused serious problems.
During the IR, there was a lack of hygiene people had little knowledge of sanitary care. Sewage was being allowed to come into contact with drinking water and contaminating it. As many people used river water as their source of drinking water, the disease spread with ease.
Where its found
Today: Common in places with poor sanitation: include Asia (especially India, Pakistan, Bangladesh), Africa, the Caribbean, Central and South Africa, Middle East
IR: In Croydon, typhoid swept through the town in 1852. The local Board of Health went about looking for a smell that caused the disease but found nothing. In fact, sewage had seeped into the town’s water supplies and contaminated the water.
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Typhoid research
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How and where was the disease discovered during the IR? How do living conditions in the IR contribute to the spread of the disease?
During the IR, there was a lack of hygiene and sanitary knowledge, sewage was allowed to come in contact with drinking water source, contaminating it and spreading the disease
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