The first reason is their size. They are very small and are very difficult to see. Special technology needed to be developed in order to observe them and their behavior and reach the conclusion that they were in fact infectious agents that could cause diseases. This wasn't possible before because the microscopes weren't as well developed.
Another is that they have a very long incubation period. This means that if you have them, a long time will pass before they start harming you which meant that many people believed them to be harmless since they couldn't track their behavior over a longer time period, also due to the lack of good technology.
Answer:
The foreign policy refer to best source which are from many countries e.g south African American
The event which marked the end of the ghost dances is stated as the Wounded Knee Massacre. The Ghost Dance War was an armed conflict in the US between the US government and Lakota Sioux which began in 1890 and ended by US victory.
I think it's C Good you And your food A few hours after the only one of the world and i was going downstairs to get a few ppl 91st and the first time we talked you know if your not on my head while the first thing in your closet and the door bell