Table 11.

Prevalence of MCPyV detection in breast cancer samples according to different studies.

Study	Positive Cases/Total Cases (%)	Technique Used
Reza, 2015 [106]	3/100 (3%)	RT-PCR on FFPE sections
Corbex, 2014 [61]	1/123 (1%)	PCR on FFPE sections
Peng, 2014 [63]	14/100 (14%)	Multiplex PCR detected by matrix-assisted laser desorptionionization-time of flight mass spectrometry on CPT
Khan, 2012 [189]	0/58 (0%)	PCR on FFPE sections

RT-PCR, real-time PCR; FFPE, formalin-fixed, paraffin-embedded; CPT, cryopreserved tissue.