This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Infection, Subject name: Medicine
A young man has recently been bitten by a stray dog. He has a penetrating wound to the right forearm. The dog is nowhere to be found. In the emergency room, the wound is cleaned with water and povidone-iodine solution. Which of the following is the most appropriate next step in management? 
Select and explain. 
A. start postexposure prophylaxis, B. contact the local public health professional for further advice, C. treat with oral doxycycline, D. treat with IV ceftriaxone
B: contact the local public health professional for further advice
Answer: B: contact the local public health professional for further advice 
Explanation: Rabies is transmitted through the saliva of infected animals. Once clinical signs develop, the disease is almost 100% fatal. Symptoms of rabies may include apathy as well as hyperexcitability. Finding Negri bodies in nerve cells of the brain in infected animals confirms the diagnosis. Polymerase chain reaction for detection of viral material is another method of confirming the diagnosis. In cats and dogs that are not available for observation (lasting 10 days) to determine if they have signs of rabies, public health authorities should be consulted to determine the potential risk of rabies in the animal based on local rates of rabies in wild animals. Alternatively if there is a high risk the animal is infected, then postexposure prophylaxis should be started with rabies vaccination on days 0, 3, 7, 14, and 28 as well as one dose of rabies immune globulin on day 0.