system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Which is most dangerous for transmitting plague -
assistant
The correct answer is  plaque is primarily a zoonoses caused by Yersenia pestis. -The commonest and the most efficient vector of the plaque is rat flea, Xenopsylla cheopis. - a paially blocked flea is more dangerous than a completely blocked flea due to longer life span. Reference : Park's textbook of preventive and social medicine, 23rd edition, pg no:293 <\p>