Here are a few options for the WordPress post tag description, catering to different needs and levels of detail, all in Traditional Chinese:

**Option 1 (Concise & Clear):**

> 重複感染是指同一種病毒或細菌，在不同時間點再次感染身體的情況。

* **Translation:** Repeated infection refers to the situation where the same virus or bacteria infects the body again at different times.
* **Good for:** General understanding, brief overview.

**Option 2 (Slightly More Detailed):**

> 了解有關重複感染的資訊。此標籤下的文章討論了再次感染同一種病原體，以及其可能造成的風險、症狀和預防措施。

* **Translation:** Learn about information regarding repeated infection. The articles under this tag discuss re-infection by the same pathogen, as well as its potential risks, symptoms, and preventative measures.
* **Good for:** A more informative tag.

**Option 3 (Focus on a Specific Context – e.g., COVID-19):**

> 探索有關COVID-19或其他疾病重複感染的文章。了解重複感染如何影響你的健康，以及預防策略。

* **Translation:** Explore articles regarding repeated infection of COVID-19 or other diseases. Learn how repeated infection affects your health, and prevention strategies.
* **Good for:** If the blog is primarily about pandemics, infectious diseases, or a specific health issue. Adapt the specific disease to other relevant viruses.

**Option 4 (Emphasis on Education):**

> 關於重複感染的教育資源。深入了解此現象，包括其如何發生、可能的影響，以及重要的預防步驟。

* **Translation:** Educational resources regarding repeated infection. Gain an in-depth understanding of this phenomenon, including how it occurs, potential impacts, and important preventative steps.
* **Good for:** Blogs that prioritize educational content

**Key Considerations when Choosing:**

* **Audience:** Consider who will be reading this blog. Are they health professionals, or the general public?
* **Content:** What is the main purpose of the blog post?
* **Website’s Tone:** Is it formal or informal?
* **SEO:** While not the primary function of a tag description, it can help with search engine optimization. Include relevant keywords like “重複感染” (repeated infection), “疾病” (disease), “症狀” (symptoms) if applicable.

**How to Implement in WordPress:**

1. **Log in to your WordPress admin panel.**
2. **Go to Posts > Tags.**
3. **Find the “重複感染” tag (or create it if it doesn’t exist).**
4. **In the “Description” field, enter the chosen description in Traditional Chinese.**
5. **Click “Update” (or “Save Changes”)**

Remember to choose the description that best reflects the nature and focus of your blog! Good luck!