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This disease traveled from the old world to the new world. Many native americans became affected because their immune system was low
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Malaria is a disease that spread from the new world to the old world, this is spread through blood, but most commonly through mosquito bites. This disease knocked out many native americans.
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Yellow Fever was first transmitted to the New World from the Old World by the slave trade and killed many people because it was a new disease that they had never been introduced to before. This is usually transmitted through mosquito bites.
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This was transmitted from the New World to the Old World. It was transmitted from the Native Americans to Europeans
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New World to Old World, which was spread through sexual contact. This is thought to be because of Africans and slavery. This causes burns, sores, body rashes etc.
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Old World to the New World which is caused by unsanitary conditions and is spread by insects.
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New World from the Old World, the flu is a disease that is fatal. It was mostly transmitted through direct contact from explorers and colonists.
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Smallpox is a very dangerous disease that originated in the Old World and was transmitted to the New World. Direct contact with those who have the disease and their bodily fluids can pass it on.