References in periodicals archive ?
The organism appears to be a derivative of El Tor O1 but has a distinct LPS and an immunologically related Oantigen polysaccharide capsule.
Prolonged colonization of mice by Vibrio cholerae El Tor O1 depends on accessory toxins.
The official records state that the cholera epidemic in Brazil was caused by an El Tor O1 strain (4,5).