MELBOURNE, Aug. 16 (UPI) -- A group of doctors in Australia say a review of a cervical cancer vaccine is needed after three treated patients contracted pancreatitis.

Despite great expectations and promising results of clinical trials, we still lack sufficient evidence of an effective vaccine against cervical cancer. Several strains of human papillomavirus (HPV) can cause cervical cancer, and two vaccines directed against the currently most important oncogenic strains (i.e., the HPV-16 and HPV-18 serotypes) have been developed.

The pink leaflets are ready, the posters are poised to go up and the advertising slots have been booked both on kids and primetime TV and radio.

Tomorrow marks the start of a new academic year. It is also the launch date of a campaign which heralds the introduction of the biggest mass vaccination programme for more than a decade.

Immigrants seeking permanent legal residency in the U.S. are now mandated to take an expensive and controversial vaccine that has been linked with thousands of serious complaints and several deaths.