# AI告诉免疫受损用户，冷冻浆果生食是安全的，因为冷冻会杀死病原体，忽略了甲型肝炎和诺如病毒能在冷冻中存活的风险

- **ID:** `food-safety/frozen-berries-hepatitis`
- **领域:** food-safety
- **类别:** health_risk
- **错误码:** `FS-BERRY-007`
- **验证级别:** ai_generated
- **修复率:** 79%

## 根因

冷冻不会杀死甲型肝炎和诺如病毒等病毒；这些病毒可以在-20°C下存活数月，并在免疫受损人群中引起严重疾病；与冷冻浆果相关的疫情已有充分记录

## 版本兼容性

| 版本 | 状态 | 引入 | 弃用 |
|------|------|------|------|
| model | active | — | — |
| platform | active | — | — |

## 解决方案

1. ```
   Advise immunocompromised users to cook frozen berries to at least 185°F (85°C) for 1 minute to inactivate Hepatitis A and Norovirus. Use in cooked applications like compote, jam, or baked goods.
   ```
2. ```
   Provide alternative: use pasteurized frozen berries (look for label indicating heat treatment) or buy berries that are individually quick-frozen (IQF) with known source, but still recommend cooking for immunocompromised.
   ```
3. ```
   If user must eat raw, recommend using berries from countries with low Hepatitis A prevalence (e.g., Canada, Northern Europe) and check for recall history, but still warn that risk remains.
   ```

## 无效尝试

- **Tell user to rinse frozen berries with water before eating** — Rinsing does not remove viruses that are embedded in berry surface or under skin; Hepatitis A is highly resistant to washing (95% 失败率)
- **Suggest buying organic frozen berries** — Organic certification does not guarantee virus-free; Hepatitis A outbreaks have been traced to organic frozen berries (90% 失败率)
- **Recommend soaking berries in vinegar solution** — Vinegar may reduce some bacteria but does not inactivate Hepatitis A or Norovirus at household concentrations (85% 失败率)