HCV-network;
treatment-on-site;
mobile-unit-community-based-testing; 
co-operation-(HCV-/HIV-testing-treatment)-and-drug-screening;
mobile-drug-consumption-facilitites;
Vast-network-of-hepatologists-&-network-of-collaboration;
Cascade-of-care;
Special-unit-in-hospital;
All-services-under-one-roof-&-cooperative-agreements;
Cooperation-with-pharmacies;
Case-management;
Mobile-HC-testing-and-elastography;
Drug-consumptio-room;
paid-peer-workers;
paid-peer-and-community-workers;
mobile-ambulatory-unit;
prison-work;
mobile-unit;
Children-day-care;
Roma-people;
Paid-peer-workers
Peer-2-peer-education;
Testing-in-homeless-centres-and-pharmacies;
‘directly-observed-therapy’;
Paid-peer-workers-‘C-Buddy;
No-need-for-abstinence;
Short-educational-interventions;
Cultural-diversity;
drug-users-organization;
patient-association;
mental-health;
cooperation-with-drug-users-union;
hepatitis-ambassador;
hepatitis-reference-nurse;
‘bring-you-friends’;
advocacy;
advocacy-on-drug-policy;
advocacy-on-access-to-treatment-and-against-stigma;
advocacy-for-harm-reduction-and-drug-policy;
advocacy-at-local-and-national-level;
advocacy-for-human-rights;
advocacy-for-evidence-base-policies;
advocacy-a-local-and-national-level;
advocacy-for-drug-consumption-rooms;
short-cut-route-for-insurance;
advocacy-for-decriminalization-of-drug-use;

TEST;
LINK;
TREAT-ext;
Treat-int;
DTC;
LTA;
OUT;
PHA;
PWUD;
PWUD;
PWUD+;
PEER;
NURSE;
SHARED;
MULTI;

WHAT: the service is: HCV testing and/or HCV linkage to care and/or hepatitis C treatment uptake. In the case of testing, type of test or diagnostic platform used may also be specified.

• HCV testing on-site  (TEST)
  
• Linkage to HCV care (LINK)
  
• Hepatitis C treatment externally (TREAT ext)
  
• Hepatitis C treatment on-the-spot (Treat int)
  

WHERE – the setting where the service is delivered: Types of settings are outreach (OUT); low-threshold agency (LTA); drug treatment centre (DTC); prison (PRI); pharmacy (PHA); or other (OTH).The low-threshold agencies included here are understood to be harm reduction service providers.

• Drug treatment centre (DTC)
• Low-threshold agency (LTA)
• Outreach (OUT)
• Pharmacy (PHA)

WHO: the general target group in this collection of case studies are people who inject drugs (PWID). However, if the model of care addresses a sub-group (e.g. homeless PWID) or a wider group (e.g. PWUD; or ‘all clients of a low-threshold agency’, or ‘marginalised communities in a specific geographical area’) is targeted, this is earmarked as well.

• Service is targeting people who use drugs (PWUD)
• A defined sub-group of PWUD  PWUD-)
• A wider group of people, including PWUD (, PWUD+)

HOW: describes the overall approach to the provision of the service and important actors involved. This includes the description of the professional profile(s) beyond the drug-related service provider that are required to deliver or lead the service (peers; nurses; hepatologists) and any indication of the level of integration of delivery of the hepatitis-related services (e.g. shared care arrangements with tertiary care; in a shared–care partnership with hepatology or gastroenterology units of local hospitals; with hepatologists who prescribe and supervise the HCV treatment accessible during dedicated hours, present via outreach or on call).

• Paid peer support workers (PEER)
• Nurse-led (NURSE)
• Shared care model (SHARED)
• Multidisciplinary team (MULTI)

Adapted from EMCDDA: Hepatitis C: new models of care for drugs services, 2019