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Murine typhus, a rare infection (20-100 cases a year in the U.S.) caused by the bacterium Rickettsia typhi and transmitted by the feces of cat or rat fleas coming in contact with a break in the ...
Fleas are vectors for viral, bacterial and rickettsial diseases of humans and other animals, as well as of protozoan and helminth parasites. [35] Bacterial diseases carried by fleas include murine or endemic typhus [34]: 124 and bubonic plague. [36] Fleas can transmit Rickettsia typhi, Rickettsia felis, Bartonella henselae, and the myxomatosis ...
Plague, a disease that affects humans and other mammals, is caused by the bacterium Yersinia pestis. The human flea can be a carrier of the plague bacterium, although it is an exceptionally very poor vector of transmission. [4] Plague is infamous for killing millions of people in Eurasia during the Middle Ages. Without prompt treatment, the ...
Murine typhus, also known as endemic typhus or flea-borne typhus, is a form of typhus transmitted by fleas (Xenopsylla cheopis), usually on rats, in contrast to epidemic typhus which is usually transmitted by lice. [1] [2] [3] Murine typhus is an under-recognized entity, as it is often confused with viral illnesses. Most people who are infected ...
The researchers first examined the possibility that human fleas — there are thousands of species of fleas and some specifically bite humans — could have helped spread the disease. It turned ...
Transmission to humans is usually through the bite of infected fleas. If the disease has progressed to the pneumonic form, humans can spread the bacterium to others through airborne respiratory droplets; others who catch plague this way will mostly contract the pneumonic form themselves. [25]
Fleas typically live longer, Cohen said, as people focus on what they find on their pets but not the home. "Treating the environment is the most difficult part to treat as you have to wait for the ...
Rickettsia typhi is a causative agent of murine typhus (endemic typhus) in humans and is distributed worldwide. [26] It is an acute, febrile illness that is mainly transmitted by the fleas of rodents, commonly associated with cities and ports where urban rats (Rattus rattus and Rattus norvegicus) are abundant. [26]