The first case herein is of a 65 - year - old man who had returned from nigeria , west africa , without malaria prophylaxis 这些严重的疟疾感染,绝大多数都是由恶性疟疾原虫所造成。
Malaria is caused by protozoan parasites which thrie in humans and are passed between them by female anopheles mosquitoes 疟疾由疟原虫引起,这种原虫在人体内繁殖,并通过雌性按蚊传播。
Indirect harm cockroach carries a variety of pathogenic microorganisms such as bacteria , virus , protozoon , parasitic ovum and fungi , etc 蟑螂能携带多种细菌、病毒、原虫、寄生虫卵、真菌等病原微生物。
Malaria is caused by a parasite that spends part of its life cycle inside the mosquito , and is passed along to humans by mosquito bites 疟疾的成因是寄生在蚊子上的疟疾原虫,并经由蚊子叮咬后传染给人类。
Quality management in medical microbiology - part 20 : requirements for the use of control material for the examination of protozoae and microorganisms of higher order 医疗微生物学质量管理.第20部分:原虫和较高的有机微
Solutions of povidone - iodine gradually release iodine to exert an effect again bacteria , fungi , viruses , protozoa , cysts and spores 碘射素是碘的有机聚合物,其水溶后慢慢游离碘能有效地杀死细菌霉菌病毒原虫包囊及芽胞。
I can ' t find any signs of parasites in my cat ' s stools , it means that my cat is free from parasites thus de - worming is not necessary 内寄生虫的种类繁多,包括原虫类,吸虫类,绦虫类和圆虫类,一般寄生在肠道内,不一定在猫只粪便中被发现。