The image is a poster with a blue background and white text in Vietnamese. The text is divided into three sections, each containing a numbered item followed by a brief description or instruction. Here is the content translated into English:

1. **Trường hợp xác định** - This translates to "Identification of cases."
2. **Trường hợp loại trừ** - This translates to "Identification of exclusion."
3. **Trường hợp loại trừ** - This translates to "Exclusion identification."

The text appears to be related to medical or health-related topics, possibly discussing methods for identifying cases and excluding individuals from a study or treatment plan.