High | Intermediate | Low | |
Carrier rate | ≥8% | 2 to 7% | <2% |
Geographic distribution | Parts of sub-Saharan Africa (eg, Western Africa, South Sudan) | Mediterranean basin; Eastern Europe; Central Asia; Southeast Asia; China; Japan; parts of Latin and South America (eg, Peru, Colombia); Middle East | United States; Canada; Western Europe; Mexico; Australia; New Zealand |
Predominant age at infection | Perinatal and early childhood | Early childhood | Adult |
Predominant mode of infection | Mother to child; percutaneous | Percutaneous; sexual | Percutaneous; sexual |
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