Conversation so far:
What was Alfred Russel a well known figure as?
he began to question the efficacy of vaccination.
What vaccinations did he question?
smallpox.
Did he suggest to use vaccinations?
vaccination, which at the time was often done in a sloppy and unsanitary manner, could be dangerous.
How was vaccinations done during this time?
vaccination, which at the time was often done in a sloppy and unsanitary manner, could be dangerous.

Question: Did he question any other vaccinations besides smallpox?
Self-contained rewrite: Aside from smallpox did Alfred Russel Wallace question any other vaccine?