Rabbit fever is a zoonotic disease caused by

The bacterium, Francisella tularensis  

Explanation:

The bacterium Francisella tularensis causes rabbit fever which is a zoonotic infection. It is an infection which is spread from infected animals to the humans. The humans get infection from this bacterium Francisella tularensis through the contact of infected animal tissues or through ticks. But, the transmission to humans by the tick bites is the main mode. The symptoms of the infection are headache, muscle pain, red spot on the skin, and shortness of breath.

Rabbit fever is a zoonotic disease caused by bacteria Francisella tularensis.

Explanation:

Rabbit fever is a zoonotic disease. The zoonotic diseases are those which transfer from infected animals to humans. The carriers of zoonotic diseases are domestic pets. Rabbit fever caused due to a bacteria Francisella tularensis. The rabbit gets infected by this disease. When the human comes in contact with infected animal tissues or ticks, they get infected. This disease is also caused by a tick bite from the infected animal. This is a rare bacterial disease found in humans. The domestic rabbits are the carrier of this disease. The symptoms include dizziness, red spots on the skin, swelling of lymph nodes, etc. The symptoms last for several days. Vaccines are also available for this disease.

explanation:

the correct answer, according to e2020, is the second choice there is an occluded front in region a and a cold front in region b.