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Table 4 Matrix of co-infections in women positive to High Risk probe.

From: Prevalence of HPV high and low risk types in cervical samples from the Italian general population: a population based study

  HPV type
HPV type 18 26 31 33 35 39 40 44 45 51 52 53 56 58 59 66 68 70 73
16 6 2 3 6 5 5 2   3 4 4 4 2 2   5 1 1 1
31   1    1 1     1 1    1   2    2
33   2         2   1 1   1 2    
35 2               1 2    
39 1 1 1   1           1 1    
42    2        1          1
43    1       1           
45 1   1   1               
51 1           1 3 1 1    1   
52      1      1      1 1 1   1
53    1               1   
54    1          1        
56     1       1 2 1    1     
58     1 1 1       1 1    1    
66 1          1      2   1   
70         1   1 1         
81    1                 
82           1    1    1    1
  1. Triple infections are reported as three couples, quadruple infections as 12 couples. N 97
  2. note:15 triple infection: 18/16/35 two; 16/66/33; 16/31/35; 31/73/42; 16/31/45; 16/33/51; 54/31/53; 51/52/56; 16/51/56; 16/53/58; 33/56/58; 35/59/66; 51/66/68; 16/52/70
  3. 2 quadruple infections 16/39/18/66; 16/26/31/39