Table 2.

Frequency of viral infection detection in tumor sample by PCR.

Virus tested for	Total Samples tested	PCR Result
		Positive samples	Percentage
EBV	178	143	80.3
HR-HPV	178	16	9.0
MCPyV	178	24	13.5
KSHV	178	0	0
ADENOVIRUSES	178	0	0
CMV	178	0	0
Co-Infections
EBV + HR-HPV	178	12	6.7
EBV + MCPyV	178	23	12.9
HR-HPV + MCPyV	178	7	3.9
EBV + MCPyV + HR-HPV	178	6	3.4