Echinococcosis

Echinococcosis is a zoonosis caused by cestodes of the genus Echinococcus in the family Taeniidae ^[1]. The provided sources identify two recognized species of medical importance, Echinococcus granulosus and Echinococcus multilocularis, which cause cystic echinococcosis and alveolar echinococcosis, respectively ^[2]. The condition is also described in source material as hydatid disease [disease metadata].

The clinical literature in the supplied sources emphasizes that pulmonary involvement may occur, with lung hydatidosis described as a form of infection related to Echinococcus species ^[3]. In that review, lung involvement is noted to be second only to liver echinococcosis, and diagnosis is often incidental on chest radiography because cysts grow slowly ^[3]. A consistent treatment approach may not be feasible in pulmonary disease because of variability in presentation, cyst characteristics, and location ^[3]. For cystic echinococcosis, the consensus source describes an image-based, stage-specific approach that may include percutaneous treatment, surgery, anti-infective drug treatment, or watch and wait ^[2]. For alveolar echinococcosis, the same source notes that late diagnosis is common and that radical surgery may not be achievable in many patients ^[2].

The disease is reported as serious and near-cosmopolitan, indicating broad global distribution in the source review ^[1]. Western China is identified as the area of highest endemicity for both cystic and alveolar echinococcosis ^[1]. The available sources also indicate that substantial progress has been made in genetics, genomics, molecular epidemiology, diagnosis, and control, reflecting ongoing research interest and public health relevance ^[1]. Source-backed detail on incidence, age patterns, occupational distribution, or quantified surveillance burden is not yet available in the provided material ^[1][3][2].

The provided sources characterize echinococcosis as a zoonosis, meaning human infection is associated with exposure to an animal reservoir or animal-linked transmission cycle, but they do not specify the exact exposure pathway in the supplied text ^[1][3]. Source-backed detail on the specific route of human acquisition, environmental persistence, or the relative importance of food, water, or direct animal contact is not yet available ^[1][3][2].

The supplied sources do not provide a formal risk-group list, but they do identify western China as the area of highest endemicity for both major forms, implying higher exposure risk in that setting ^[1]. They also indicate that pulmonary involvement may be discovered incidentally on chest radiography and that disease expression varies by cyst size, location, and clinical presentation, which may affect which patients come to attention ^[3]. Source-backed detail on occupation-specific, age-specific, or host-specific high-risk groups is not yet available ^[1][3][2].

The source material indicates that control strategies include development and deployment of vaccines, together with broader prevention and control efforts ^[1]. It also notes that recent advances in treatment and control have informed management strategies, but does not provide a detailed preventive package in the supplied excerpts ^[1][2]. Source-backed detail on routine prophylaxis, animal control specifics, or household-level exposure reduction measures is not yet available ^[1][2].

In surveillance settings, echinococcosis should be read as a parasitic zoonosis with clinically important cystic and alveolar forms, rather than as a single uniform syndrome ^[1][2]. The sources suggest that reported cases may be influenced by delayed growth of cysts and incidental discovery, especially in pulmonary disease, so absence of early clinical recognition does not exclude ongoing disease burden ^[3]. Source-backed detail on standardized case definitions, reporting intervals, or routine indicators is not yet available in the provided material ^[1][3][2].

1. 1 Wen H et al. Echinococcosis: Advances in the 21st Century. Clin Microbiol Rev. 2019 Mar 20. PMID: 30760475. doi: 10.1128/CMR.00075-18. PubMed: https://pubmed.ncbi.nlm.nih.gov/30760475/
2. 2 Brunetti E et al. Expert consensus for the diagnosis and treatment of cystic and alveolar echinococcosis in humans. Acta Trop. 2010 Apr. PMID: 19931502. doi: 10.1016/j.actatropica.2009.11.001. PubMed: https://pubmed.ncbi.nlm.nih.gov/19931502/
3. 3 Lupia T et al. Pulmonary Echinococcosis or Lung Hydatidosis: A Narrative Review. Surg Infect (Larchmt). 2021 Jun. PMID: 33297827. doi: 10.1089/sur.2020.197. PubMed: https://pubmed.ncbi.nlm.nih.gov/33297827/
4. 4 Echinococcosis. Tropical Infectious Diseases. 2003. doi: 10.1016/b978-0-443-06668-9.50119-8. DOI: https://doi.org/10.1016/b978-0-443-06668-9.50119-8
5. 5 Echinococcosis. Control of Communicable Diseases Manual. 2015. doi: 10.2105/ccdm.2745.059. DOI: https://doi.org/10.2105/ccdm.2745.059
6. 6 Echinococcosis. Encyclopedia of Parasitology. 2016. doi: 10.1007/978-3-662-43978-4_978. DOI: https://doi.org/10.1007/978-3-662-43978-4_978

ICD-10

B67

ICD-11

1F88

Total cases

71K

Total deaths

31

Peak month

2017-03

Coverage

3 reporting countries · 2000-01-01 → 2026-06-20