The spread of black death was felt far and wide throughout the entire europe in the mid-fourteenth century. what causes hindered the plague from spreading to eastern/northeastern europe? what were the causes and effects of the plague?

The causes of the plague where people living in filth, not bathing and living with rats. The reason why it only spread as far as it did is because other religions that whereby Christian, bathed ritually. The effects of the plague where mass hysteria, famine, isolation and illness.