Pathologic characteristics of protozoa 1. Multiplication(增殖) 2. Diffusion(disperse 3. Opportunistic pathogen(机会致病) Classification of protozoa According their locomotion organelles, protozoa can be divided into four groups Amoebae, flagellates, ciliates and sporozoanPathologic characteristics of protozoa ▪ 1. Multiplication (增殖) ▪ 2. Diffusion (disperse ) ▪ 3. Opportunistic pathogen (机会致病) ▪ Classification of protozoa: ▪ According their locomotion organelles, protozoa can be divided into four groups: Amoebae, flagellates, ciliates and sporozoan. ▪