n South African Journal of Obstetrics and Gynaecology - News




Extracted from text ... October 2003, Vol. 9, No. 3 SAJOG NEWS 50 CERVICAL CANCER VACCINE MAY LOSE EFFECTIVENESS DURING OVULATION A vaccine against human papillomavirus 16 (HPV16), the virus that causes cervical cancer, produces antibodies against HPV16 at the site where cervical cancer develops. This is a promising indication that the vaccine is effective. However, antibody levels appear to decrease around ovulation, raising the possibility that the vaccine may be less effective during that time. The effectiveness of a vaccine is determined by whether it can produce an immune response at disease-specific sites such as the cervix. Previous studies have shown that an ..


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