We don't have synonyms for plaga yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are playa, plaza and plage.
°(used absolutely, usually capitalized: The Pest) The pestilent disease "Plague", caused by the virulent bacteriumYersiniapestis and mostly known by its variant form bubonic plague.
°(used absolutely, usually capitalized: The Pest) The pestilent disease "Plague", caused by the virulent bacteriumYersiniapestis and mostly known by its variant form bubonic plague.