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   What are the symptoms of rickettsial infection?

   • Different rickettsial infections tend to cause similar symptoms: A sore covered by a black scab (eschar) may form at the site of the bite. Because the rash often does not appear for several days, early rickettsial infection is often mistaken for a common viral infection, such as influenza. People may have swollen lymph nodes.

   Overview of Rickettsial Infections - Infections - Merck Manuals

   www.merckmanuals.com/home/infections/rickettsial-and-related-infections/overview-of-rickettsial-infections

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   Does Rickettsia prowazekii cause epidemic typhus?

   • Rickettsia prowazekii is the agent that causes epidemic typhus, also known as louse-borne typhus, or louse-borne fever. Epidemic typhus is rare in the United States and often occurs in areas of widespread body louse infestations, overcrowding, and poor sanitary conditions (Durden 2019).

   ENY-2107/IN1418: Vector-Borne Rickettsia Pathogens - EDIS

   edis.ifas.ufl.edu/publication/IN1418

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   What is Rickettsia prowazekii?

   • Rickettsia prowazekii is an intracellular, gram-negative coccobacillus. It is an obligate parasite. R. prowazekii belongs to the genus Rickettsia and is the causative agent of epidemic typhus. The genus Rickettsia is composed of gram-negative bacteria. Rickettsiae are the closest known relatives of mitochondria in eukaryotic cells.

   Rickettsia Prowazekii - StatPearls - NCBI Bookshelf

   www.ncbi.nlm.nih.gov/books/NBK448173/

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   Can humans get Rickettsia prowazekii?

   • Humans are the usual host for Rickettsia prowazekii, which causes epidemic typhus. Host animals may or may not be ill from the infection. Rickettsiae and rickettsia-like bacteria are usually spread to people through the bites of ticks, mites, fleas, or lice that previously fed on an infected animal.

   Overview of Rickettsial Infections - Infections - Merck Manuals

   www.merckmanuals.com/home/infections/rickettsial-and-related-infections/overview-of-rickettsial-infections

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2. www.cdc.gov › typhus › epidemicEpidemic Typhus | Typhus Fevers | CDC

   www.cdc.gov › typhus › epidemic

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   Nov 13, 2020 · On This Page. Signs and Symptoms. Diagnosis and Testing. Treatment. Prevention. Epidemic typhus, also called louse-borne typhus, is an uncommon disease caused by a bacteria called Rickettsia prowazekii. Epidemic typhus is spread to people through contact with infected body lice.

3. www.ncbi.nlm.nih.gov › books › NBK448173Rickettsia Prowazekii - StatPearls - NCBI Bookshelf

   www.ncbi.nlm.nih.gov › books › NBK448173

   Aug 8, 2023 · Rickettsia prowazekii is an obligate, intracellular, gram-negative coccobacillus belonging to the genus Rickettsia. It is the causative agent of epidemic typhus which is transmitted by the human body louse. Epidemic typhus presents with a high fever, myalgias, headache, dry cough, delirium and a rash that begins on the trunk and spreads ...

   • Author: Sami M. Akram, Megan Ladd, Kevin C. King

   • Published: 2023/08/08

4. www.merckmanuals.com › professional › infectiousEpidemic Typhus - Infectious Diseases - Merck Manual ...

   www.merckmanuals.com › professional › infectious

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   Epidemic typhus is caused by Rickettsia prowazekii. Symptoms are prolonged high fever, intractable headache, and a maculopapular rash. (See also Overview of Rickettsial and Related Infections.) Epidemic typhus is a rickettsial disease.

5. www.healthline.com › health › typhusTyphus: Causes, Symptoms, and Diagnosis - Healthline

   www.healthline.com › health › typhus

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   Feb 1, 2019 · Picture. Causes. Symptoms. Diagnosis. Treatment. Complications. Outlook. Prevention. What is typhus? Typhus is a disease caused by infection with one or more rickettsial bacteria. Fleas, mites...

6. www.merckmanuals.com › home › infectionsOverview of Rickettsial Infections - Infections - Merck ...

   www.merckmanuals.com › home › infections

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   Different rickettsial infections tend to cause similar symptoms: Fever. Severe headache. A characteristic rash. A general feeling of illness (malaise) A sore covered by a black scab (eschar) may form at the site of the bite.

7. edis.ifas.ufl.edu › publication › IN1418ENY-2107/IN1418: Vector-Borne Rickettsia Pathogens - EDIS

   edis.ifas.ufl.edu › publication › IN1418

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   Apr 22, 2024 · Symptoms of Rickettsia prowazekii infection occur within two weeks after infection and include fever, headache, malaise, and cough. Within 4–7 days after initial symptoms, a rash usually occurs and spreads from the abdomen to the chest and then, often, to most of the rest of the body (Durden 2019).

8. www.verywellhealth.com › typhus-5080159Typhus: Definition, Symptoms, Treatment, and More

   www.verywellhealth.com › typhus-5080159

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   Jul 17, 2023 · Symptoms. Diagnosis. Treatment. Long-Term Effects. Typhus is a group of bacterial diseases caused by rickettsia bacteria infection. This zoonotic illness is transferred to humans by an infected animal, and typical carriers of the bacteria include fleas, mites, and lice.