SHV-5 and SHV-2a variants of extended spectrum Beta-lactamase in Klebsiella pneumoniae in Egypt Enas A Newire1*, Salwa F Ahmed1, Brent House1, Esmeralda Valiente2 and Guillermo Pimentel1 Abstract Background: Klebsiella pneumoniae outbreaks possessing extended-spectrum β-lactamase- (ESBL) mediated...