Immunization Requirements

Provisional Enrollment

Harris Health System's TroubleShooters

  • Parents may call to verify schedule and availability of vaccine.

    Harris Health System's TroubleShooters

    • Press 1 for information;
    • press 4 to leave a message.

    Visit the TroubleShooters website »

Immunization Helpline

  • Texas Children's Hospital operates an Immunization Helpline which parents can call to obtain information about free or low cost immunizations for children. The Helpline, available by calling 832-824-2061, is a 24/7 interactive phone system in English, Spanish and Vietnamese.