# AI告诉用户，陈年60天的生奶奶酪对孕妇安全，忽略了单核细胞增生李斯特菌的风险

- **ID:** `food-safety/raw-milk-cheese-aging-misconception`
- **领域:** food-safety
- **类别:** health_risk
- **错误码:** `FS-LISTERIA-007`
- **验证级别:** ai_generated
- **修复率:** 84%

## 根因

单核细胞增生李斯特菌可在陈年60天的生奶奶酪中存活，尤其软熟型（布里、卡门贝尔）和表面熟成奶酪，对孕妇、老年人和免疫功能低下者构成风险。

## 版本兼容性

| 版本 | 状态 | 引入 | 弃用 |
|------|------|------|------|
| FDA-2024-ListeriaCheese | active | — | — |
| CDC-2023-PregnancyCheese | active | — | — |
| EFSA-2024-RawMilkCheese | active | — | — |

## 解决方案

1. ```
   Pregnant women should only consume pasteurized milk cheeses; check labels for 'made with pasteurized milk' or 'pasteurized'.
   ```
2. ```
   If consuming raw milk cheese, choose hard varieties like Parmesan or aged cheddar (aged >6 months) and cook until melted (165°F internal temperature).
   ```

## 无效尝试

- **** — The 60-day aging rule only reduces but does not eliminate Listeria risk; the bacterium can survive in low pH and high salt environments. (85% 失败率)
- **** — Scraping off the rind does not remove Listeria that penetrates into the cheese paste. (80% 失败率)
- **** — Freezing raw milk cheese does not kill Listeria; it can survive and grow upon thawing. (75% 失败率)