In this task, you are given a statement spoken by a politician in natural language. Your task is to generate the subject of the discussion for the given statement. The subject generated is not necessarily a part of the given input. Your answer should contain one or more words.

The most likely triggering cause of (microcephaly) is the DTaP shot, a vaccine that had been recently mandated by the Brazilian government to be injected into pregnant women.
public-health