Answer:
The answer is "epidemics brought to the Americas by Europeans".
Step-by-step explanation:
European countries also brought deadlines including smallpox, measles, typhoid, or cholera, that are not protected by the native Americans. This is the cause of death through smallpox isn't clear, but multiple organs also are recognized.
- These cause factors can be revolving immunity clusters, excessive viremia, or uncontrolled immune system.
- In early weeping pox, mortality suddenly occurs around six days after the initiation of the fever.