Metastrongylus is a genus of nematodes of the family Metastrongylidae, usually found as lungworms in pigs and sometimes causing parasitic bronchitis. It causes a disease called metastrongylosis.

Lungworms that infect swine include Metastrongylus elongatus (apri), M. pudendotectusand M. salmi. Metastrongylus elongatus infections are the most common but infection with more than one species can occur.

Metastrongylus spp in pigs require an earthworm intermediate host; thus, infection occurs only in pigs with access to the outdoors and may become more common in previously less endemic areas as a result of free-range production methods.

Metastrongylus spp. are heteroxenous nematode parasites with suids as definitive hosts. Adult worms live in the bronchi, where the females lay eggs which reach the digestive tract via airways.

Pulmonary metastrongylosis, a zoonotic disease found primarily in pigs, is caused by eight different species of the cosmopolitan nematode Metastrongylus genus. To date, only four human cases have been reported, all from Europe.

Jun 7, 2022 · Metastrongylus is a genus of parasitic roundworms that infects mainly pigs and wild boars worldwide. Prevalence in wild boars may be very high. Studies in Central Europe found populations of wild boars that were 100% infected with these worms. There are several species of veterinary importance, all with a similar biology and life cycle:

Metastrongyloids are parasites of the respiratory, vascular, and nervous systems of mammals. Most species whose life histories have been investigated require a snail or slug intermediate host. However, Metastrongylus spp. develop to the infective stage in earthworms, and F. osleri and F. hirthi infect their definitive hosts directly. The ...

Metastrongylosis is a parasitic disease that affects wild boars and pigs which live outdoors. [1] . It is caused by various species of roundworms of the genus Metastrongylus. [2] . A handful of cases of metastrongylosis have been reported in humans. [3] Metastrongylus species have a life cycle which involves earthworms as an intermediate host. [4]

Apr 12, 2021 · Metastrongylus spp. are lung nematodes found in pigs. This parasite is present in many parts of the world and is only found rarely in Canada. Adult parasites live in the bronchi and bronchioles.

Metastrongylus species are parasites of the respiratory tract of swine (Vanparijs and Thienpont 1982). These widely distributed helminths are particularly prevalent and abundant in young swine hoats, with acquired immunity usually developing in adults (Heise-Pavlov and Heise-Pavlov 2003).