E? Heibon Desu yo?? - Vol. 3 Ch. 17

[MangaDex]

 

[mahtan]

From what I found the miasma may be either fictional or pneumonia.

 

[OllyMolly]

Are you kidding me, she saw those people got up & talk to her, after they were so ill they could barely stay conscious. Her prayers & presence literally helped to cure them & yet she's afraid of them? But it's fair... she's still too young to be composed enough & alone too.

 

[kamentierr]

and then she's infected. The end.

I see it more like she's scared of the burden of expectations from the dozens of dying people begging for her to save them.