Table 1.

Description of the strains tested against the guava leaf extract.

Strains	Code	Resistance Pattern
E. coli (ESBL)	CMY-2	Betalactamic resistance (Penicillins and cephalosporins up to third generation)
E. coli	ATCC 25922	Wild-type E. coli
S. aureus (MRSA)	ATCC 43300	Methicillin resistant
S. aureus	ATCC 23923	Wild-Type S. aureus
S. pseudintermedius	B19	Resistant to Sulfametoxazole + trimetoprim
S. pseudintermedius	B20	No expressed resistance to any tested antimicrobials
Streptococcus spp. beta-hemolytic	-	No expressed resistance to any tested antimicrobials

Legend: ESBL—Extended Spectrum Betalactamase; MRSA—Methicillin resistant Staphylococcus aureus.