Description: Streptococcus equi subsp. equi infection, commonly known as ` strangles ` is characterized by fever and nasal discharge that is eventually followed by abscessation of the lymph nodes of the head and neck. Morbidity is nearly 100 percentage in susceptible populations while the mortality rate ranges from 0 to 10 percentage, usually due to complications. We describe a severe case of S. equi lung abscessation and a case of mesenteric abscessation in 2 fillies. The two cases represent complicated cases seen during a large-scale outbreak that occurred in Israel in 2002. The antibiotic susceptibility tests of 7 isolates of the microorganism carried out in Israel during this outbreak are presented and the recent literature on S. equi subsp. equi infection reviewed