"‘Ani is very ill. The doctor says it may be pneumonia."
Streptococcus pneumoniae, one of the bacteria responsible for pneumonia
Anna's daughter has pneumonia. This is an infection caused by either bacteria, fungi, or protozoa associated with cold which may further point to her poor ability as a mother. Pneumonia was a major killer disease around the time described in the novel before scientific advancement later contained it in Europe. It remains dangerous in third world countries but its prevalence has been reduced to manageable levels.