Conversation so far:
Where was Isaac Asimov born?
Isaac Asimov was born in Petrovichi, Klimovichskiy Uyezd, Russian SFSR.
Are there any other interesting aspects about Isaac Asimov?
Isaac Asimov and 16 other children in Petrovichi developed double pneumonia.
Was Isaac Asimov hopsitalized because of the pneumonia?
Who were Isaac Asimov's parents?
Isaac Asimov's parents were Anna Rachel (née Berman) and Judah Asimov.
Did Isaac Asimov have any siblings?
Isaac Asimov had a younger sister.

Question: Where any of the children who died from pneumonia his siblings?
Self-contained rewrite: Were any of the children who died from pneumonia Isaac Asimov's siblings?