<qa>  What is the primary method for detecting HPV infection with comparable sensitivity and specificity toInvasive cervical cancer ICC is preventable through regular screening and treatment, but one fifth of US women report not receiving Pap testing at recommended intervals. More than half of ICC cases occur in these under-screened women. For women 30 years and older, the US Preventive Services Task Force recommends Pap smears alone every 3 years or physician-collected HPV testing with Pap smear co-testing every 5 years. The FDA approved primary HPV physician screening for US women 25 years and older. Self-collection for HPV testing is a valid and well-accepted method for detecting HPV infection with comparable sensitivity and specificity to physician-collection for detecting high-grade cervical lesions. 