We would like to extend our sincere gratitude to Dr. James Crabbe for his help in editing the manuscript. This work was supported by the National Natural Science Foundation of China (Grant No. 81101955); and the Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20110071120094).
Human papillomaviruses (HPVs) including high.risk (HR) and low-risk (LR) subtypes have distinguishable variation on both genotypes and phenotypes. The co- infection of multiple HR-HPVs, headed by HPV16, is commo...