One virus paicle prevents multiplication of second virus. This phenomena is?
**Core Concept**
The phenomenon where one virus particle prevents the multiplication of a second virus is a complex interaction between viral particles and the host cell. This concept is crucial in understanding viral interference, which can be a defense mechanism of the host cell against viral infections.
**Why the Correct Answer is Right**
Viral interference occurs when one virus (the interferon-inducing virus) triggers the host cell to produce interferons, which are proteins that inhibit the replication of other viruses (the interferon-sensitive virus). The interferons induce the production of antiviral proteins that block the replication of the second virus. This mechanism is mediated by the JAK-STAT signaling pathway, which is activated by the binding of interferons to their receptors on the host cell surface.
**Why Each Wrong Option is Incorrect**
* **Option A:** This option is not relevant to the phenomenon of viral interference.
* **Option B:** This option might be related to viral interference, but it is not the correct term.
* **Option C:** This option is incorrect because it refers to a different phenomenon altogether.
**Clinical Pearl / High-Yield Fact**
It's essential to remember that viral interference is a key mechanism by which the host cell defends itself against viral infections, and it's mediated by the production of interferons.
**Correct Answer:** C. Interference.