First report of pediatric ehrlichiosis in Mexico.

Background: Ehrlichia chaffeensis is responsible for most cases of human ehrlichiosis, an acute febrile tick-borne disease. This clinical entity is more commonly reported in adults from the United States. Therefore, it is of special interest to characterize this disease in children, given that very few cases in children have been reported outside of this country.

Ceftolozane/tazobactam and ceftazidime/avibactam antimicrobial activity against clinically relevant gram-negative bacilli isolated in Mexico.

Introduction: There is limited information on the effectiveness of ceftolozane/tazobactam and ceftazidime/avibactam combinations on clinically relevant strains isolated in Mexico.

Objective: To determine the antimicrobial profile of both antibiotic combinations in our community.

Method: The present research study was prospective, descriptive and cross-sectional.