The following host response can be seen in acute infection,except
**Core Concept**
The host response to acute infection involves various **inflammatory** and **immune** mechanisms. **Acute phase response** is a systemic reaction to infection, characterized by the release of **cytokines** and **chemokines**. This response aims to eliminate the infectious agent and repair damaged tissue.
**Why the Correct Answer is Right**
Since the options are missing, let's discuss a general concept. In acute infection, the host response typically includes **fever**, **leukocytosis**, and **increased acute phase proteins**. The correct answer would be an option that does not fit this pattern, such as a response typically seen in chronic infection.
**Why Each Wrong Option is Incorrect**
**Option A:** Without the specific option, it's hard to comment, but typically, options that describe common acute phase responses (e.g., **fever**, **leukocytosis**) would be incorrect because they are indeed seen in acute infection.
**Option B:** Similarly, without specifics, but responses like **increased cytokine production** are characteristic of acute infection.
**Option C:** Again, without the option, but something like **activation of complement** is part of the acute phase response.
**Option D:** This might be the correct answer if it described a response not typically seen in acute infection, such as **fibrosis**, which is more characteristic of chronic infection.
**Clinical Pearl / High-Yield Fact**
A key point to remember is that the **acute phase response** is a systemic reaction that can have both local and systemic effects, including **fever**, **fatigue**, and **loss of appetite**. Recognizing the signs of acute infection is crucial for timely diagnosis and treatment.
**Correct Answer:** D. Chronic response like fibrosis