Could not find any links for specified country. Please check back later. Xylem is the world leader in tough, portable and reliable pumps for multiple applications. Our broad product range in combined with extensive application experience ensure the right solution that meets your specific needs. Submersible pumps can handle small drainage jobs to larger dewatering projects.
An obligate parasite, or holoparasite, is a parasitic organism that cannot complete its life-cycle without exploiting a suitable host. If an obligate parasite cannot obtain a host it will fail to reproduce.
Obligate intracellular parasites of humans include: 1  viruses. 2  Certain bacteria, including: 3  Chlamydia, and closely related species. 4  Rickettsia. 5  Coxiella. 6  Certain species of Mycobacterium such as Mycobacterium leprae. 7  Certain protozoa, including: 8  Apicomplexans (Plasmodium spp., Toxoplasma gondii and Cryptosporidium parvum).