This is the 12236th most frequent Russian word.
инфекционное
Infectious or contagious.
In this sentence, the word 'инфекционное' is used to describe the type of disease, conveying that it is related to an infection.
Инфекционное заболевание быстро распространяется среди людей.
An infectious disease spreads quickly among people.
Here, 'инфекционное' describes a department in a hospital specializing in infectious cases, indicating its focus.
Он работает в инфекционном отделении местной больницы.
He works in the infectious department of the local hospital.
In this example, 'инфекционное' is part of a phrase ('infection agents'), used as an adjective to define agents causing infections, demonstrating its use in academic or scientific context.