Simple Examples:
* The old house was infested with rats. (The rats were living in large numbers and causing problems)
* The garden was infested with weeds. (The weeds were growing in large numbers and taking over the garden)
More Detailed Examples:
* After the hurricane, the town was infested with mosquitoes. (The hurricane created conditions that allowed mosquitoes to breed and thrive)
* The computer system was infested with malware. (Harmful software had invaded and taken control of the system)
* The beach was infested with jellyfish. (There were so many jellyfish that it was difficult to swim safely)
Figurative Example:
* The city was infested with rumors of a scandal. (The rumors were widespread and spreading quickly)
These examples demonstrate how "infest" signifies an overwhelming presence of something undesirable, often causing harm or disruption.