stylistic:tone, structural:summarization
Recurrences

The Black Death was the first occurrence of the second pandemic, which continued to strike England and the rest of Europe more or less regularly until the 18th century. The first serious recurrence in England came in the years 1361−62. Little is known about the death rates caused by these later outbreaks, but the so-called pestis secunda may have had a mortality of around 20 per cent. Genetic analysis performed on remains recovered from the abbey of St. Mary's Graces dating between 1353 and 1364 found the pPCP1 plasmid, a plasmid only found in Yersinia pestis and not the related environmental agent Yersinia pseudotuberculosis, revealing that this outbreak was also caused by Yersinia pestis just as the initial outbreak had been. This epidemic was also particularly devastating for the population's ability to recover, since it disproportionately affected infants and young men. This was also the case with the next occurrence, in 1369, where the death rate was around 10−15 per cent.