BABESIOSIS IN HUMANS

Babesiosis is a tick-borne parasitic disease caused by the intraerythrocytic protozoan Babesia spp. and transmitted primarily by Ixodes ticks. The geographical distribution of the parasites coincides with the regions where their tick vectors are prevalent. More than 50 cases of human babesiosis hav...

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Main Author: Zornitsa Traykova
Format: Article
Language:English
Published: National Center of Infectious and Parasitic Diseases 2025-01-01
Series:Problems of Infectious and Parasitic Diseases
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Online Access:https://pipd.ncipd.org/index.php/pipd/article/view/144
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author Zornitsa Traykova
author_facet Zornitsa Traykova
author_sort Zornitsa Traykova
collection DOAJ
description Babesiosis is a tick-borne parasitic disease caused by the intraerythrocytic protozoan Babesia spp. and transmitted primarily by Ixodes ticks. The geographical distribution of the parasites coincides with the regions where their tick vectors are prevalent. More than 50 cases of human babesiosis have been reported in Europe, mainly associated with Babesia divergens, which causes acute disease in cattle and is transmitted by Ixodes ricinus. In contrast, the incidence of the disease in the USA is approximately 2000 cases per year, with the main causative agent being Babesia microti and the tick vector being Ixodes scapularis. Although babesiosis is primarily an animal disease, humans can also become acutely ill, particularly splenectomized and immunocompromised individuals. Clinical manifestations range from asymptomatic to severe disease with symptoms including fever, chills, hemoglobinuria and anemia. There is a risk of potentially fatal complications such as acute respiratory, renal or multi-organ failure, particularly in vulnerable populations. Diagnosis is primarily based on light microscopy and PCR testing, while serological methods are more appropriate for epidemiological studies. Treatment regimens typically include a 7-10 day course of either atovaquone plus azithromycin or clindamycin plus quinine. Human cases are associated with outdoor activities or living in rural areas during the warm months when tick activity is at its peak. Because of the increasing incidence in endemic regions and the potentially serious clinical consequences, babesiosis should be considered in the differential diagnosis of febrile illnesses of unknown origin.
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spelling doaj-art-6f9ff9b0dcd24f848552217a877732102025-01-18T19:01:04ZengNational Center of Infectious and Parasitic DiseasesProblems of Infectious and Parasitic Diseases0204-91552815-28082025-01-0152310.58395/bck6nm60BABESIOSIS IN HUMANSZornitsa Traykova0National Centre of Infecious and Parasiic Diseases, Sofia, Bulgaria Babesiosis is a tick-borne parasitic disease caused by the intraerythrocytic protozoan Babesia spp. and transmitted primarily by Ixodes ticks. The geographical distribution of the parasites coincides with the regions where their tick vectors are prevalent. More than 50 cases of human babesiosis have been reported in Europe, mainly associated with Babesia divergens, which causes acute disease in cattle and is transmitted by Ixodes ricinus. In contrast, the incidence of the disease in the USA is approximately 2000 cases per year, with the main causative agent being Babesia microti and the tick vector being Ixodes scapularis. Although babesiosis is primarily an animal disease, humans can also become acutely ill, particularly splenectomized and immunocompromised individuals. Clinical manifestations range from asymptomatic to severe disease with symptoms including fever, chills, hemoglobinuria and anemia. There is a risk of potentially fatal complications such as acute respiratory, renal or multi-organ failure, particularly in vulnerable populations. Diagnosis is primarily based on light microscopy and PCR testing, while serological methods are more appropriate for epidemiological studies. Treatment regimens typically include a 7-10 day course of either atovaquone plus azithromycin or clindamycin plus quinine. Human cases are associated with outdoor activities or living in rural areas during the warm months when tick activity is at its peak. Because of the increasing incidence in endemic regions and the potentially serious clinical consequences, babesiosis should be considered in the differential diagnosis of febrile illnesses of unknown origin. https://pipd.ncipd.org/index.php/pipd/article/view/144babesiosisetiologydistributiontreatment
spellingShingle Zornitsa Traykova
BABESIOSIS IN HUMANS
Problems of Infectious and Parasitic Diseases
babesiosis
etiology
distribution
treatment
title BABESIOSIS IN HUMANS
title_full BABESIOSIS IN HUMANS
title_fullStr BABESIOSIS IN HUMANS
title_full_unstemmed BABESIOSIS IN HUMANS
title_short BABESIOSIS IN HUMANS
title_sort babesiosis in humans
topic babesiosis
etiology
distribution
treatment
url https://pipd.ncipd.org/index.php/pipd/article/view/144
work_keys_str_mv AT zornitsatraykova babesiosisinhumans