Why did diseases spread so rapidly in the americas after european explorers arrived?
the diseases affected the body’s major organs.
the diseases were highly contagious.
the diseases affected the immune system.
the diseases were harmful to the skin.

Explanation:

The calamitous epidemics that went with the European victory of the New World destroyed the indigenous populace of the Americas. Flu, smallpox, measles, and typhus fever were among the main European infections imported to the Americas. During the initial hundred years of contact with Europeans, Native Americans were caught in a virtual snare of new maladies. European infections, seeds, weeds, and creatures irreversibly changed the first organic and social scene of the Americas. By 1518, the Native American statistic fiasco and the requests of Spanish settlers for work prompted the importation of slaves from Africa. In this way, the Americas rapidly became the site of the mixing of the peoples and infectious agents of previously separate continents.

the hollywood film industry of 1950 was threatened on several different fronts. television broadcasting was rapidly becoming the dominant entertainment medium in the united states. the paramount anti-trust consent decree requiring separate ownership for production companies and theater chains had gone into effect on 1 january 1950. large numbers of young men and women were marrying, having children, and moving to the suburbs, which affected the viability of downtown first-run movie theaters. foreign revenues were endangered by protectionist tactics including quota systems, high taxes, and blocked funds. finally, the morality and patriotism of hollywood films and filmmakers were under attack from government, religious, and citizens' groups.

explanation: