CDC deputy director abruptly resigns from role as agency reels from turnover

Ralph Abraham, who started CDC role in January, is second top official to step down from agency this month

Ralph Abraham, the US Centers for Disease Control and Prevention's principal deputy director, has stepped down, the agency said on Monday, announcing the exit of a top official for the second time in February.

The agency known as the CDC - which is temporarily being run by Dr Jay Bhattacharya - said the departure was effective immediately and attributed it to unforeseen family obligations. It did not comment on who would replace Abraham.