WASHINGTON — Political strategist David Axelrod, a former top adviser to President Barack Obama, zinged Hillary Clinton on Monday for her “penchant for privacy,” while her campaign acknowledged they could have “done better” in dealing with her pneumonia.

Axelrod, a CNN analyst and founder of the University of Chicago Institute of Politics, made the comment in a Monday Twitter post following the delayed announcement that Clinton suffered from pneumonia. Clinton’s campaign revealed the diagnosis — made on Friday — only after Clinton fell ill on Sunday at a 9/11 memorial in New York.

“Antibiotics can take care of pneumonia. What’s the cure for an unhealthy penchant for privacy that repeatedly creates unnecessary problems?” Axelrod wrote.

Clinton communications director Jennifer Palmieri said later in her own Twitter post, “We could have done better yesterday, but it is a fact that public knows more about HRC than any nominee in history.”