To date, studies do not show harmful effects from the pandemic influenza vaccine with respect to pregnancy, fertility, or a developing embryo or fetus, birthing or post-natal development.

The snag is that the world's capacity to create a vaccine against pandemic influenza is based on the smaller amounts needed to fight seasonal flu.

It takes approximately five to six months for the first supplies of approved vaccine to become available once a new strain of influenza virus with pandemic potential is identified and isolated.