Here are a few options for the description of the WordPress post_tag “貓免疫缺乏病毒” (Feline Immunodeficiency Virus) in Traditional Chinese, ranging from concise to slightly more detailed:

**Option 1: Concise & Direct**

> 貓免疫缺乏病毒 (FIV) 相關資訊。

> Translation: Information related to Feline Immunodeficiency Virus (FIV).

**Reasoning:** This is a very short and to-the-point description, ideal for a quick understanding of what articles tagged with this term concern.

**Option 2: Slightly More Descriptive**

> 了解貓免疫缺乏病毒 (FIV)，包括傳播方式、症狀、診斷和治療方法。

> Translation: Learn about Feline Immunodeficiency Virus (FIV), including transmission methods, symptoms, diagnosis, and treatment options.

**Reasoning:** Provides a bit more context, suggesting the tag covers information about FIV’s various aspects.

**Option 3: Focusing on the Specific Disease**

> 貓免疫缺乏病毒 (FIV) 是一種影響貓咪免疫系統的病毒，會導致免疫力下降。 在此了解更多關於 FIV 的知識，保護您的愛貓。

> Translation: Feline Immunodeficiency Virus (FIV) is a virus that affects a cat’s immune system, leading to decreased immunity. Learn more about FIV here to protect your beloved cat.

**Reasoning:** This option emphasizes the disease itself and hints at the importance of learning about it for cat owners.

**Option 4: Emphasizing Practical Information**

> 深入探討貓免疫缺乏病毒 (FIV) 的預防、護理和管理，幫助您的貓咪保持健康。

> Translation: Explore in-depth the prevention, care, and management of Feline Immunodeficiency Virus (FIV) to help keep your cat healthy.

**Reasoning:** This focuses on the actionable information a reader might find under this tag.

**How to use the description in WordPress:**

1. **Go to your WordPress Dashboard.**
2. **Navigate to Posts > Tags.**
3. **Find the tag “貓免疫缺乏病毒”.**
4. **Click “Edit”.**
5. **In the “Description” field, paste your chosen description.**
6. **Click “Update”.**

When a user hovers over or clicks on this tag on your blog, the description will be displayed (depending on your theme’s settings). Choose the description that best reflects the content you’ll be tagging with this term and the information you aim to provide to your readers. Remember to use traditional Chinese characters. Good luck!