Colorado Serum Company’s Chlamydia abortus bacterin is a subcutaneous suspension designed for use in sheep. This sheep vaccine contains Chlamydia psittaci (bacterin) and comes in 20 mL and 100 mL vial options to suit flock needs. Each 2 mL dose supports herd vaccination programs and fits seamlessly into livestock health products protocols. Available without a prescription in Canada; prescription required in Quebec.