UPDATE, with Jessica Biel’s Thursday morning response Actress Jessica Biel has joined the parade of prominent Hollywood actors who are opposing mandatory vaccinations for California.

Biel made the rounds in Sacramento on Tuesday, joining with ant-vaxx activist Robert F. Kennedy Jr. at the California State Assembly to lobby against SB 276, a state bill that would limit medical exemptions from vaccinations without approval from a state public health officer.

Biel and husband Justin Timberlake were reported to have avoided vaccinating their children, but have never publicly spoken of their opposition.

“Please say thank you to the courageous @jessicabiel for a busy and productive day at the California State House,” Kennedy posted on Instagram. Several other politicians posted photos of themselves posing with Biel.

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On Thursday morning, Biel posted a lengthy statement on Instagram in an attempt to clarify her position, citing anecdotal evidence about friends with a child whose medical condition “warrants an exemption from vaccinations.” The actress said she is “not against vaccinations” and supports “children getting vaccinations,” but also supports “families having the right to make educated medical decisions…” (See the full statement below).

Many commenters were unpersuaded by Biel’s clarification. In a typical response, an Instagram follower wrote: “Cool. If you don’t want to vaccinate feel free to choose home educating as well.”

Here’s Biel’s statement in full: