Fig. 1From: Prevalence of human papillomavirus infection in squamous cell carcinoma of the anal canal in a Northeast City in Brazil: viral genotyping and clinical aspectsThe graphic shows the number of samples infected with the different HPV types. All positive samples were infected with HPV-16. HPV-52 was present in 7 samples; HPV-11 and HPV-18 in 6 samples; HPV-69 in 3 samples; HPV-29, HPV-39, HPV-59, and HPV-66 in 2 samples each; and HPV-45 in 1 sampleBack to article page