Which of the following should be injected in and around the wound in class III rabies bite?
The options are A, B, C, D, but they're not listed here, which is a bit of a problem. But maybe the correct answer is something like rabies immunoglobulin (RIG) and rabies vaccine. I remember that for class III bites, you need both. The vaccine is given to stimulate the immune system, and RIG provides immediate passive immunity. So the injection would be RIG around the wound and vaccine at a different site.
Wait, the question says "injected in and around the wound." So RIG should be infiltrated into the wound as much as possible and the remainder injected intramuscularly. The vaccine is given intramuscularly, not into the wound. So if the options include RIG and vaccine, then the correct answer is RIG. But if the options are only between RIG and vaccine, then the correct answer is RIG. However, in actual protocol, you need both. But maybe the question is specifically about what's injected into the wound. So RIG is the one given in and around the wound.
Let me check the standard protocol. According to WHO guidelines, for category III exposures, the wound should be washed thoroughly, then RIG is infiltrated around the wound and any remaining dose is given intramuscularly. The vaccine is given intramuscularly as a separate injection. So the correct answer is rabies immunoglobulin (RIG) injected into and around the wound.
The wrong options might include things like antitetanus, antibiotics, or just the vaccine. The vaccine is given but not into the wound. So options that suggest only the vaccine or other treatments like antitetanus would be incorrect in this context.
So the core concept here is the management of rabies category III bites, specifically the use of RIG. The correct answer is RIG, which is injected in and around the wound. The vaccine is given separately. So if the options include RIG as an option, that's the right one. If the options are A to D without specific labels, but the correct answer is RIG, then the explanation would focus on that.
**Core Concept**
Rabies post-exposure prophylaxis for class III bites requires *rabies immunoglobulin (RIG)* to neutralize the virus locally. This is combined with the rabies vaccine to stimulate active immunity. Class III bites (penetrating injuries, head/neck, or multiple wounds) demand immediate intervention to prevent viral entry into the nervous system.
**Why the Correct Answer is Right**
Rabies immunoglobulin (RIG) is infiltrated directly into and around the wound to provide immediate passive immunity, while the rabies vaccine is administered at a separate site (e.g., deltoid) to induce long-term active immunity. RIG binds free rabies virus particles, preventing their spread to nerve endings. This dual approach is critical for high-risk class III exposures, as the vaccine alone cannot neutralize the virus quickly enough.
**Why