HPV drug under increased scrutiny

The Centers for Disease Control and Prevention is investigating more than 7,800 reports of the vaccine causing a range of health problems. Merck makes the vaccine.

Girls and women have blamed the vaccine for causing ailments from nausea to paralysis. Gardasil prevents the spread of the human papillomavirus, known as HPV, which is a sexually transmitted virus that can cause cervical cancer in girls and women.

Merck says it would continue to evaluate reports of adverse reactions and will update product labels with new safety information as appropriate.