{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.chickenpox","code":"thing-q44727","url":"https://ver.cy/models/thing/q44727/","name":"chickenpox","alternateNames":["Varicella-zoster virus pneumonia","varicella, severe recurrent"],"kind":"thing","status":"published","version":"0.2.0-wave.3","language":"en","classifiers":{"family":"Thing Registry","category":"Cross-cutting context","entryKind":"thing","plane":"XCT","domain":["XCT.STA"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"A highly contagious disease caused by primary infection with the varicella-zoster virus, producing fever and an itchy rash of blisters, usually mild in children but more severe in adults, pregnant women, newborns and immunocompromised people, with complications such as bacterial skin infection, varicella pneumonia and encephalitis, and congenital varicella syndrome when infection occurs in early pregnancy; the virus then remains latent and can reactivate as shingles, and vaccination has greatly reduced cases where used.","purpose":"Let an agent explain chickenpox and its course in general terms from public health sources, describe complications and risk groups, relay vaccination and infection control guidance, and route personal cases to clinicians.","scope":{"in":[],"out":[],"boundaries":[]},"distinguishingFeatures":["Blister rash in crops","High contagiousness","Latency and shingles","Vaccine preventable"],"structure":{"bundles":[{"id":"help","name":"Help","description":"When to seek care.","layers":[{"id":"urgent","name":"Urgent","description":"Warning signs.","findings":[{"id":"urgent-finding","name":"Urgent","description":"Urgent.","questions":[{"text":"Which signs, such as breathing difficulty, confusion or spreading skin infection, need urgent care?","kind":"action"},{"text":"Is the user describing such signs, which need emergency or urgent care now?","kind":"boundary"}]}]},{"id":"risk","name":"Risk","description":"Risk groups.","findings":[{"id":"risk-finding","name":"Risk","description":"Risk.","questions":[{"text":"Why do adults, pregnant women, newborns and immunocompromised people need prompt medical advice after exposure?","kind":"provenance"},{"text":"Is the user in a risk group, which needs a clinician promptly?","kind":"boundary"}]}]}]},{"id":"understand","name":"Understand","description":"The disease.","layers":[{"id":"course","name":"Course","description":"Course and transmission.","findings":[{"id":"course-finding","name":"Course","description":"Course.","questions":[{"text":"How does chickenpox spread, and how does it progress from incubation to recovery?","kind":"definition"},{"text":"Is the question about chickenpox, shingles or another rash?","kind":"boundary"}]}]},{"id":"complications","name":"Complications","description":"Complications.","findings":[{"id":"complications-finding","name":"Complications","description":"Complications.","questions":[{"text":"What complications such as varicella pneumonia and congenital varicella can occur?","kind":"provenance"},{"text":"Which entry fits the specific complication?","kind":"action"}]}]}]},{"id":"manage","name":"Manage","description":"Care and prevention.","layers":[{"id":"care","name":"Care","description":"Care.","findings":[{"id":"care-finding","name":"Care","description":"Care.","questions":[{"text":"What general care do health services advise, and when are antivirals used?","kind":"provenance"},{"text":"Which references are standard?","kind":"provenance"}]}]},{"id":"vaccine","name":"Vaccine","description":"Vaccination and control.","findings":[{"id":"vaccine-finding","name":"Vaccine","description":"Vaccine.","questions":[{"text":"How does varicella vaccination work, which countries use it, and what exclusion rules apply?","kind":"provenance"},{"text":"Which sources are cited?","kind":"provenance"}]}]}]},{"id":"context","name":"Context","description":"Epidemiology and history.","layers":[{"id":"epidemiology","name":"Epidemiology","description":"Epidemiology.","findings":[{"id":"epidemiology-finding","name":"Epidemiology","description":"Epidemiology.","questions":[{"text":"How has vaccination changed chickenpox incidence, and what debates surround universal vaccination, with positions attributed?","kind":"provenance"},{"text":"Is the presentation neutral?","kind":"boundary"}]}]},{"id":"history","name":"History","description":"History.","findings":[{"id":"history-finding","name":"History","description":"History.","questions":[{"text":"How was chickenpox distinguished from smallpox, and how was the vaccine developed?","kind":"provenance"},{"text":"Which entry fits the history of vaccines?","kind":"action"}]}]}]}]},"agentConduct":{"may":["Explain chickenpox, how it spreads and who is at higher risk in general terms.","Point people to official vaccination and public health guidance."],"mustNot":["Diagnose chickenpox or advise on medicines for a specific person.","Encourage deliberate exposure of children to infection.","Spread false claims about chickenpox vaccines.","Disclose a named person's infection without consent or legal basis."],"requiresHuman":["Excluding a child or worker from school or work during an outbreak."]},"ethics":{"considerations":["Chickenpox can be dangerous to newborns, pregnant women and people with weak immunity.","Decisions about one child's exposure affect vulnerable people around them."],"affectedParties":["Children","Pregnant people","People with weak immunity"]},"owners":{"steward":"Public health authorities lead on control; the treating clinician answers for care.","roles":[],"masterSystems":["Notifiable disease surveillance systems"]},"relations":[{"target":"Q2458539","type":"parent","note":"registry parent class"},{"target":"Q2852249","type":"parent","note":"registry parent class"},{"target":"Q55779917","type":"parent","note":"registry parent class"},{"target":"varicella zoster infection","type":"related","note":"in registry terms"},{"target":"skin infection","type":"related","note":"in registry terms"},{"target":"varicella-zoster virus","type":"related","note":"a herpesvirus"},{"target":"shingles","type":"related","note":"on reactivation"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.chickenpox","Wikidata: Q44727 (https://www.wikidata.org/wiki/Q44727)","ICD-11: 1E90 varicella","MeSH: D002644 chickenpox"]},"properties":{"applicability":"not-applicable","items":["incubation: 10-21 days","contagious period: from 1-2 days before rash until lesions crust period","vaccine effectiveness against any disease: about 80-90 percent - one dose; higher with two"]},"recognition":{"applicability":"optional","items":["Primary varicella-zoster infection","Childhood chickenpox, severe adult varicella, varicella pneumonia, congenital varicella","Shingles is reactivation of the same virus; measles and hand, foot and mouth disease have different rashes","Not a visible object; an itchy rash of small blisters in crops."]},"capabilities":{"applicability":"required","items":["explain the disease and course","describe complications and risk groups","relay vaccination and control","route personal cases"]},"hazards":{"applicability":"required","items":["Severe disease in adults, pregnancy and immunocompromised people","Aspirin use in children with varicella and Reye syndrome","Agents giving personal medical advice","Confusing with other rashes"]},"interfaces":{"applicability":"required","items":["National immunisation schedules including varicella vaccine","Notifiable disease rules in some countries","School and workplace exclusion guidance"]},"context":{"applicability":"required","items":["Not applicable; a disease.","uncomplicated childhood chickenpox","adult varicella","varicella in pregnancy and congenital varicella syndrome","neonatal varicella","varicella in immunocompromised people","complications such as varicella pneumonia and encephalitis","breakthrough varicella after vaccination"]}},"sources":[{"title":"Wikidata item Q44727: chickenpox","url":"https://www.wikidata.org/wiki/Q44727","note":"identity and sense of the item"},{"title":"Wikipedia: Chickenpox","url":"https://en.wikipedia.org/wiki/Chickenpox","note":"general description of the item"}],"openQuestions":["Should shingles and varicella vaccine be separate primary entries?","How should public health guidance be linked?","The registry entry has merged aliases naming complications; should they be split off?"],"resources":{"spec":"/models/things/publications/thing-q44727/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q44727/spec.json"],"providers":["Claude"],"researchStatus":"unreviewed","generatedAt":"2026-09-13T03:12:17Z","builder":"tools/build_cards.py@1.0.0"},"completeness":{"sections":{"classifiers":"filled","whatItIs":"filled","purpose":"filled","distinguishingFeatures":"filled","structure":"filled","agentConduct":"filled","ethics":"filled","owners":"filled","relations":"filled","interaction.identity":"filled","interaction.properties":"not-applicable","interaction.recognition":"filled","interaction.capabilities":"filled","interaction.hazards":"filled","interaction.interfaces":"filled","interaction.context":"filled","sources":"filled"},"notes":{"_gate":"Published through the thing publication gate 1.0 on 2026-10-06T19:52:00+00:00: completeness 1.00; sense: Wikidata description; 2 live sources; review by codex: pass","interaction.properties":"Plane XCT: no invented physical properties."},"score":1.0}}