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It possibly originated from chimpanzees (early Homo sapiens) or chickens. There is varying scientific theories on this.
It is passed by insect stings or bites (especially mosquitos) as well as by blood (unclean needles or unscreened blod)
Control methods include:
- biological controls such as larvivorous fish which kill the mosquito larvae
-case management such as documenting cases of diseases and treating them
-pesticide treated nets
Environmental Factors:
-Global warming increases habitable range for mosquitos
-increases with water fall because mosquitos have more places to lay their eggs

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Source: infection caused by the bacteria borrellia burgdorferi
How it is transmitted: through the bite of an infected tick
Control method: wearing long sleeved clothes and long pants or wearing bug spray. Removing a tick correctly. Don’t wander off trails. Take a shower after being somewhen where you might attract ticks
Impacting environmental factors: excessive areas of long grass, warmer winters as a result of global warming keep ticks alive, more deer=more hosts for ticks

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Source: an animal virus that originated in Southern China in 2002 but still uncertain where it exactly originated from

It is transmitted by coughs, sneezes, common surfaces and contact

Control methods for someone with SARS are to wear a surgical mask and cover any coughs and sneezes

Environmental factors that impact the spread of SARS are temperature and relative humidity. SARS thrives in temperatures of 16-28 degrees Celsius

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Name: Tuberculosis

Source: Mycobacterium tuberculosis bacterium

Transmission: Air, Coughing, Sneezing, Spitting, Laughing

Control Methods: Vaccines, Medicine, Antibiotics

Environmental Factors: Go hand in hand with poverty like air pollution, malnutrition, and overcrowding living spaces

Russian Epidemic: Occurred in prison systems due to overcrowding. Members of the WHO have been controlling several Russian regions by taking patients with mutated forms of TB under their care so they can receive special attention.

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2.) MRSA comes from bacteria from the noses of humans, and can be spread from person to person
3.) People get it through, skin to skin contact, from their own noses, or from licking or kissing or spooning with someone.
4.) You can control MRSA by maintaining could hygiene, avoiding sharing personal items, and by keeping cuts clean.
5.) Environmental factors are, house size, number of children in family’s, and crowding.

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Origins: Cows are fed a mixture of bone and meat of other cows, which was contaminated by MBM, which is found in sheep who have scrapie and live in the same slaughterhouse as the cows.
How is it transmitted: Humans eat the infected flesh of cows who already have the disease.
Control methods: Banning the feeding of bone meal and meat to cows. Also in UK and US slaughterhouses, the brain, spinal cord, trigeminal ganglia, intestines, eyes, and tonsils from cattle are removed before the meat is packaged.
Environment factors affecting this disease:

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1. Herpes
2. Caused by the herpes simplex virus.
3. By mother to baby by pregnancy, labor, or nursing.

By having unprotected vaginal, anal, or oral sex.
4. Specific antiviral therapy is available which can decrease the severity of initial genital herpes infection, reduce the likelihood of recurrences. For severe infections, salt baths or ice packs may reduce discomfort. But herpes is forever.
5. The pH of the incubator of the virus is an important factor in maintaining its infectivity.

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•The source of Yellow Fever are mosquitos infected with the virus that are often found in Africa and South America.
•Yellow Fever is transmitted through a mosquito bite. The mosquito can catch the virus by biting an infected human, and a human can get the virus by being bitten by an infected mosquito.
•Some control methods of Yellow Fever are vaccinations to prevent the virus if bitten by an infected mosquito, or protective clothing and insect repellent to prevent being bitten. Control is important because this virus cannot be cured; the symptoms can just be treated.
•An environmental factor that impacts Yellow Fever are global warming, because mosquitos that can carry the virus thrive in warm climates.

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The source of Cholera is from contaminated water or food usually contaminated by a bacteria called Vibrio Cholorae. Cholera is spread by drinking contaminated water or contaminated food that has been in contact with this bacteria. Some control methods include purifying water and washing/cleaning any food that has the possibility of containing Vibrio Cholorae. Another control method is limiting runoff of animal feces into food/crops. Runoff is a big environmental factor that contributes to Cholera outbreaks because it can bring feces and drinking water/food together, contaminating them.

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•Source- Pigs, Birds, Swine mainly from Europe to Southeast Asia
•Transmission- Airborne, Skin to Skin, Saliva, or by touching contaminated surfaces.
• Control Methods- The major effective control measure for influenza is vaccination, which can prevent influenza illnesses.
• Environmental Factors- The climate affects the frequency of influenza, more people get influenza during colder climate changes.
• Spanish Flu- Spain was the only country to releas death rates of the disease in 1918.