Which Diseases Impact on both Humans and Animals?
By Zoe
Contents Page 1. Introduction 2. Disease that affect only Animals 3. Disease that affect only Humans 4. Diseases that spread from Animals to People 5. Disease spread from Humans to Animals 6. Conclusion 7. Glossary 8. Sources
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Introduction Diseases are illnesses that affect humans, animals, and plants. Diseases are conditions that prevent the body or mind from working normally. Disease is bad because it causes sickness, weakness and sometimes death. Some diseases affect only animals. Some diseases affect only people. Some diseases spread from animals to people and other diseases spread from people to animals.
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Disease that affect Animals Bovine Spongiform Encephalopathy (BSE) is a serious disease that can’t let cows stand up and this disease can also kill cows. This disease can also be called Mad Cow Disease. It’s called Mad Cow Disease because when cows gets this disease they can act strangely and can lose the ability to do what they normally do.
More information on Mad Cow disease
Diseases that only affect Humans Smallpox was a disease that only affected people. This disease was caused by a virus called variola virus. The name of the disease was from a Latin word meaning spotted. It was removed from the world in 1980 by a collaborative global vaccination program led by the World health organization. Smallpox symptoms are high fever, chills, headache, severe back pain, abdominal pain, and vomiting.
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Diseases that Spread from Animals to People Zoonosis Diseases are diseases spread from animals to humans. Zoonosis can be caused by viruses, bacteria, parasites, and fungi. Zoonosis is a type of a disease. It can cause about 3 out of 5 new human sickness from bugs and animals. One example of a Zoonosis Disease is Listeria. It is a serious disease that can infect animals and then pass on to people. It will make you sick. Listeria symptoms are headache, fever, muscle ache, and confusion.
Fungi
Lyme Disease is another Zoonosis disease. It can be caused by a bug called ticks, mostly black legged ticks. When you get a lyme disease that means you have been bitten by a tick You might have a headache, fever, or skin rash.
A tick
The mark when you have got bitten by a tick
Anthrax, another Zoonosis Disease, is a spreadable disease that can be caused by gram-positive, and rod shape bacteria. Gram positive bacteria are a purple colored bacteria, and rod shape bacteria that can also be called Bacillus. Bacillus can be found in groups of bacteria. Anthrax can be found naturally in soil, but commonly affects domestic and wild animals around the world. People can get affected from skin of animals like cows, sheep’s, or goats.
This is Anthrax
Disease spread from Humans to Animals Reverse zoonoses diseases are similar to zoonosis, but the difference is that the reverse zoonosis diseases spread from humans to animals. Scientist have found reverse zoonoses diseases on every continent except Antarctica. This is a worldwide threat!! Since people can travel all over the world, scientist predict we will see more reverse zoonoses diseases. Therefore more diseases will be spread. Some examples of reverse zoonoses diseases are white pox, Mycobacterium tuberculosis, and methicillin-resistant Staphylococcus aureus (MRSA).
This is a bacteria called Staphylococcus Aureus.
Conclusion There are different types of diseases. Some diseases affect only animals, other diseases affect only people. Some diseases spread from animals to people, while other diseases spread from people to animals. Since people travel all around the world, the number of diseases could increase, which could affect ecosystems and could also affect humans.
Glossary Condition - a condition that a person or something that is in a specific time. Prevent: stop Ability: something that your good at. Fungi: Fungus/ mushroom Bacillus: It is a rod shape bacteria. Methicillin-resistant: A bacteria.
Sources 1. http://www.cdc.gov/lyme/ 2. http://www.cdc.gov/onehealth/zoonoticdiseases.html 3. https://www.sciencedaily.com/releases/ 2009/10/091026152810.htm 4. http://www.who.int/csr/disease/smallpox/en/ 5. http://www.healthline.com/health/ smallpox#Overview1 6. http://www.who.int/csr/disease/smallpox/faq/en/