What was this plague like compared to the plague in the 14th century ?

The 1665 plague was on a far smaller scale than the earlier out-brake in 1347-1353. The 

1347 plague lasted 5 years more than the 1665 plague. Causing more deaths and making it easer to spread as there would have been many dead bodies. 25 million people died in just under five years between 1347 and 1352. Even when the worst was over, smaller outbreaks continued, not just for years, but for centuries. The survivors lived in constant fear of the plague's return, and the disease did not disappear until the 1600s.