Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor)

  • Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor) - R50.9 Fever, unspecified
    • abortus - A23.1 Brucellosis due to Brucella abortus
    • Aden (dengue) - A90 Dengue fever [classical dengue]
    • African tick-borne - A68.1 Tick-borne relapsing fever
    • American
      • mountain (tick) - A93.2 Colorado tick fever
      • spotted - A77.0 Spotted fever due to Rickettsia rickettsii
    • aphthous - B08.8 Other specified viral infections characterized by skin and mucous membrane lesions
    • arbovirus, arboviral - A94 Unspecified arthropod-borne viral fever
      • hemorrhagic - A94 Unspecified arthropod-borne viral fever
      • specified NEC - A93.8 Other specified arthropod-borne viral fevers
    • Argentinian hemorrhagic - A96.0 Junin hemorrhagic fever
    • Assam - B55.0 Visceral leishmaniasis
    • Australian Q - A78 Q fever
    • Bangkok hemorrhagic - A91 Dengue hemorrhagic fever
    • Barmah forest - A92.8 Other specified mosquito-borne viral fevers
    • Bartonella - A44.0 Systemic bartonellosis
    • bilious, hemoglobinuric - B50.8 Other severe and complicated Plasmodium falciparum malaria
    • blackwater - B50.8 Other severe and complicated Plasmodium falciparum malaria
    • blister - B00.1 Herpesviral vesicular dermatitis
    • Bolivian hemorrhagic - A96.1 Machupo hemorrhagic fever
    • Bonvale dam - T73.3 Exhaustion due to excessive exertion
    • boutonneuse - A77.1 Spotted fever due to Rickettsia conorii
    • brain - See: Encephalitis;
    • Brazilian purpuric - A48.4 Brazilian purpuric fever
    • breakbone - A90 Dengue fever [classical dengue]
    • Bullis - A77.0 Spotted fever due to Rickettsia rickettsii
    • Bunyamwera - A92.8 Other specified mosquito-borne viral fevers
    • Burdwan - B55.0 Visceral leishmaniasis
    • Bwamba - A92.8 Other specified mosquito-borne viral fevers
    • Cameroon - See: Malaria;
    • Canton - A75.9 Typhus fever, unspecified
    • catarrhal (acute) - J00 Acute nasopharyngitis [common cold]
      • chronic - J31.0 Chronic rhinitis
    • cat-scratch - A28.1 Cat-scratch disease
    • Central Asian hemorrhagic - A98.0 Crimean-Congo hemorrhagic fever
    • cerebral - See: Encephalitis;
    • cerebrospinal meningococcal - A39.0 Meningococcal meningitis
    • Chagres - B50.9 Plasmodium falciparum malaria, unspecified
    • Chandipura - A92.8 Other specified mosquito-borne viral fevers
    • Changuinola - A93.1 Sandfly fever
    • Charcot's (biliary) (hepatic) (intermittent) - See: Calculus, bile duct;
    • Chikungunya (viral) (hemorrhagic) - A92.0 Chikungunya virus disease
    • Chitral - A93.1 Sandfly fever
    • Colombo - See: Fever, paratyphoid;
    • Colorado tick (virus) - A93.2 Colorado tick fever
    • congestive (remittent) - See: Malaria;
    • Congo virus - A98.0 Crimean-Congo hemorrhagic fever
    • continued malarial - B50.9 Plasmodium falciparum malaria, unspecified
    • Corsican - See: Malaria;
    • Crimean-Congo hemorrhagic - A98.0 Crimean-Congo hemorrhagic fever
    • Cyprus - See: Brucellosis;
    • dandy - A90 Dengue fever [classical dengue]
    • deer fly - See: Tularemia;
    • dengue (virus) - A90 Dengue fever [classical dengue]
      • hemorrhagic - A91 Dengue hemorrhagic fever
      • sandfly - A93.1 Sandfly fever
    • desert - B38.0 Acute pulmonary coccidioidomycosis
    • drug induced - R50.2 Drug induced fever
    • due to
      • conditions classified elsewhere - R50.81 Fever presenting with conditions classified elsewhere
      • heat - T67.0 Heatstroke and sunstroke
    • enteric - A01.00 Typhoid fever, unspecified
    • enteroviral exanthematous (Boston exanthem) - A88.0 Enteroviral exanthematous fever [Boston exanthem]
    • ephemeral (of unknown origin) - R50.9 Fever, unspecified
    • epidemic hemorrhagic - A98.5 Hemorrhagic fever with renal syndrome
    • erysipelatous - See: Erysipelas;
    • estivo-autumnal (malarial) - B50.9 Plasmodium falciparum malaria, unspecified
    • famine - A75.0 Epidemic louse-borne typhus fever due to Rickettsia prowazekii
    • five day - A79.0 Trench fever
    • following delivery - O86.4 Pyrexia of unknown origin following delivery
    • Fort Bragg - A27.89 Other forms of leptospirosis
    • gastroenteric - A01.00 Typhoid fever, unspecified
    • gastromalarial - See: Malaria;
    • Gibraltar - See: Brucellosis;
    • glandular - See: Mononucleosis, infectious;
    • Guama (viral) - A92.8 Other specified mosquito-borne viral fevers
    • Haverhill - A25.1 Streptobacillosis
    • hay (allergic) - J30.1 Allergic rhinitis due to pollen
      • due to
        • allergen other than pollen - J30.89 Other allergic rhinitis
        • pollen, any plant or tree - J30.1 Allergic rhinitis due to pollen
      • with asthma (bronchial) - J45.909 Unspecified asthma, uncomplicated
        • with
          • exacerbation (acute) - J45.901 Unspecified asthma with (acute) exacerbation
          • status asthmaticus - J45.902 Unspecified asthma with status asthmaticus
    • heat (effects) - T67.0 Heatstroke and sunstroke
    • hematuric, bilious - B50.8 Other severe and complicated Plasmodium falciparum malaria
    • hemoglobinuric (malarial) (bilious) - B50.8 Other severe and complicated Plasmodium falciparum malaria
    • hemorrhagic (arthropod-borne) NOS - A94 Unspecified arthropod-borne viral fever
      • arenaviral - A96.9 Arenaviral hemorrhagic fever, unspecified
        • specified NEC - A96.8 Other arenaviral hemorrhagic fevers
      • Argentinian - A96.0 Junin hemorrhagic fever
      • Bangkok - A91 Dengue hemorrhagic fever
      • Bolivian - A96.1 Machupo hemorrhagic fever
      • Central Asian - A98.0 Crimean-Congo hemorrhagic fever
      • Chikungunya - A92.0 Chikungunya virus disease
      • Crimean-Congo - A98.0 Crimean-Congo hemorrhagic fever
      • dengue (virus) - A91 Dengue hemorrhagic fever
      • epidemic - A98.5 Hemorrhagic fever with renal syndrome
      • Junin (virus) - A96.0 Junin hemorrhagic fever
      • Korean - A98.5 Hemorrhagic fever with renal syndrome
      • Kyasanur forest - A98.2 Kyasanur Forest disease
      • Machupo (virus) - A96.1 Machupo hemorrhagic fever
      • mite-borne - A93.8 Other specified arthropod-borne viral fevers
      • mosquito-borne - A92.8 Other specified mosquito-borne viral fevers
      • Omsk - A98.1 Omsk hemorrhagic fever
      • Philippine - A91 Dengue hemorrhagic fever
      • Russian - A98.5 Hemorrhagic fever with renal syndrome
      • Singapore - A91 Dengue hemorrhagic fever
      • Southeast Asia - A91 Dengue hemorrhagic fever
      • Thailand - A91 Dengue hemorrhagic fever
      • tick-borne NEC - A93.8 Other specified arthropod-borne viral fevers
      • viral - A99 Unspecified viral hemorrhagic fever
        • specified NEC - A98.8 Other specified viral hemorrhagic fevers
      • with renal syndrome - A98.5 Hemorrhagic fever with renal syndrome
    • hepatic - See: Cholecystitis;
    • herpetic - See: Herpes;
    • icterohemorrhagic - A27.0 Leptospirosis icterohemorrhagica
    • Indiana - A93.8 Other specified arthropod-borne viral fevers
    • infective - B99.9 Unspecified infectious disease
      • specified NEC - B99.8 Other infectious disease
    • intermittent (bilious) - See Also: Malaria;
      • of unknown origin - R50.9 Fever, unspecified
      • pernicious - B50.9 Plasmodium falciparum malaria, unspecified
    • iodide - R50.2 Drug induced fever
    • Japanese river - A75.3 Typhus fever due to Rickettsia tsutsugamushi
    • jungle - See Also: Malaria;
      • yellow - A95.0 Sylvatic yellow fever
    • Junin (virus) hemorrhagic - A96.0 Junin hemorrhagic fever
    • Katayama - B65.2 Schistosomiasis due to Schistosoma japonicum
    • kedani - A75.3 Typhus fever due to Rickettsia tsutsugamushi
    • Kenya (tick) - A77.1 Spotted fever due to Rickettsia conorii
    • Kew Garden - A79.1 Rickettsialpox due to Rickettsia akari
    • Korean hemorrhagic - A98.5 Hemorrhagic fever with renal syndrome
    • Lassa - A96.2 Lassa fever
    • Lone Star - A77.0 Spotted fever due to Rickettsia rickettsii
    • Machupo (virus) hemorrhagic - A96.1 Machupo hemorrhagic fever
    • malaria, malarial - See: Malaria;
    • Malta - A23.9 Brucellosis, unspecified
    • Marseilles - A77.1 Spotted fever due to Rickettsia conorii
    • marsh - See: Malaria;
    • Mayaro (viral) - A92.8 Other specified mosquito-borne viral fevers
    • Mediterranean - See Also: Brucellosis; - A23.9 Brucellosis, unspecified
      • familial - M04.1 Periodic fever syndromes
      • tick - A77.1 Spotted fever due to Rickettsia conorii
    • meningeal - See: Meningitis;
    • Meuse - A79.0 Trench fever
    • Mexican - A75.2 Typhus fever due to Rickettsia typhi
    • mianeh - A68.1 Tick-borne relapsing fever
    • miasmatic - See: Malaria;
    • mosquito-borne (viral) - A92.9 Mosquito-borne viral fever, unspecified
      • hemorrhagic - A92.8 Other specified mosquito-borne viral fevers
    • mountain - See Also: Brucellosis;
      • meaning Rocky Mountain spotted fever - A77.0 Spotted fever due to Rickettsia rickettsii
      • tick (American) (Colorado) (viral) - A93.2 Colorado tick fever
    • Mucambo (viral) - A92.8 Other specified mosquito-borne viral fevers
    • mud - A27.9 Leptospirosis, unspecified
    • Neapolitan - See: Brucellosis;
    • neutropenic - D70.9 Neutropenia, unspecified
    • newborn - P81.9 Disturbance of temperature regulation of newborn, unspecified
      • environmental - P81.0 Environmental hyperthermia of newborn
    • Nine-Mile - A78 Q fever
    • non-exanthematous tick - A93.2 Colorado tick fever
    • North Asian tick-borne - A77.2 Spotted fever due to Rickettsia siberica
    • Omsk hemorrhagic - A98.1 Omsk hemorrhagic fever
    • O'nyong-nyong (viral) - A92.1 O'nyong-nyong fever
    • Oropouche (viral) - A93.0 Oropouche virus disease
    • Oroya - A44.0 Systemic bartonellosis
    • paludal - See: Malaria;
    • Panama (malarial) - B50.9 Plasmodium falciparum malaria, unspecified
    • Pappataci - A93.1 Sandfly fever
    • paratyphoid - A01.4 Paratyphoid fever, unspecified
      • A - A01.1 Paratyphoid fever A
      • B - A01.2 Paratyphoid fever B
      • C - A01.3 Paratyphoid fever C
    • parrot - A70 Chlamydia psittaci infections
    • periodic (Mediterranean) - M04.1 Periodic fever syndromes
    • persistent (of unknown origin) - R50.9 Fever, unspecified
    • petechial - A39.0 Meningococcal meningitis
    • pharyngoconjunctival - B30.2 Viral pharyngoconjunctivitis
    • Philippine hemorrhagic - A91 Dengue hemorrhagic fever
    • phlebotomus - A93.1 Sandfly fever
    • Piry (virus) - A93.8 Other specified arthropod-borne viral fevers
    • Pixuna (viral) - A92.8 Other specified mosquito-borne viral fevers
    • Plasmodium ovale - B53.0 Plasmodium ovale malaria
    • polioviral (nonparalytic) - A80.4 Acute nonparalytic poliomyelitis
    • Pontiac - A48.2 Nonpneumonic Legionnaires' disease [Pontiac fever]
    • postimmunization - R50.83 Postvaccination fever
    • postoperative - R50.82 Postprocedural fever
      • due to infection - T81.40 Infection following a procedure, unspecified
    • posttransfusion - R50.84 Febrile nonhemolytic transfusion reaction
    • postvaccination - R50.83 Postvaccination fever
    • presenting with conditions classified elsewhere - R50.81 Fever presenting with conditions classified elsewhere
    • pretibial - A27.89 Other forms of leptospirosis
    • puerperal - O86.4 Pyrexia of unknown origin following delivery
    • Q - A78 Q fever
    • quadrilateral - A78 Q fever
    • quartan (malaria) - B52.9 Plasmodium malariae malaria without complication
    • Queensland (coastal) (tick) - A77.3 Spotted fever due to Rickettsia australis
    • quintan - A79.0 Trench fever
    • rabbit - See: Tularemia;
    • rat-bite - A25.9 Rat-bite fever, unspecified
      • due to
        • Spirillum - A25.0 Spirillosis
        • Streptobacillus moniliformis - A25.1 Streptobacillosis
    • recurrent - See: Fever, relapsing;
    • relapsing (Borrelia) - A68.9 Relapsing fever, unspecified
      • Carter's (Asiatic) - A68.1 Tick-borne relapsing fever
      • Dutton's (West African) - A68.1 Tick-borne relapsing fever
      • Koch's - A68.9 Relapsing fever, unspecified
      • louse-borne - A68.0 Louse-borne relapsing fever
      • Novy's
        • louse-borne - A68.0 Louse-borne relapsing fever
        • tick-borne - A68.1 Tick-borne relapsing fever
      • Obermeyer's (European) - A68.0 Louse-borne relapsing fever
      • tick-borne - A68.1 Tick-borne relapsing fever
    • remittent (bilious) (congestive) (gastric) - See: Malaria;
    • rheumatic (active) (acute) (chronic) (subacute) - I00 Rheumatic fever without heart involvement
      • active with heart involvement - See: category; - I01 Rheumatic fever with heart involvement
      • inactive or quiescent with
        • cardiac hypertrophy - I09.89 Other specified rheumatic heart diseases
        • carditis - I09.9 Rheumatic heart disease, unspecified
        • endocarditis - I09.1 Rheumatic diseases of endocardium, valve unspecified
          • aortic (valve) - I06.9 Rheumatic aortic valve disease, unspecified
            • with mitral (valve) disease - I08.0 Rheumatic disorders of both mitral and aortic valves
          • mitral (valve) - I05.9 Rheumatic mitral valve disease, unspecified
            • with aortic (valve) disease - I08.0 Rheumatic disorders of both mitral and aortic valves
          • pulmonary (valve) - I09.89 Other specified rheumatic heart diseases
          • tricuspid (valve) - I07.8 Other rheumatic tricuspid valve diseases
        • heart disease NEC - I09.89 Other specified rheumatic heart diseases
        • heart failure (congestive) (conditions in category I50.) - I09.81 Rheumatic heart failure
        • left ventricular failure (conditions in I50.1- I50.4-) - I09.81 Rheumatic heart failure
        • myocarditis, myocardial degeneration (conditions in I51.4) - I09.0 Rheumatic myocarditis
        • pancarditis - I09.9 Rheumatic heart disease, unspecified
        • pericarditis - I09.2 Chronic rheumatic pericarditis
      • with central nervous system involvement - I02.9 Rheumatic chorea without heart involvement
    • Rift Valley (viral) - A92.4 Rift Valley fever
    • Rocky Mountain spotted - A77.0 Spotted fever due to Rickettsia rickettsii
    • rose - J30.1 Allergic rhinitis due to pollen
    • Ross River - B33.1 Ross River disease
    • Russian hemorrhagic - A98.5 Hemorrhagic fever with renal syndrome
    • San Joaquin (Valley) - B38.0 Acute pulmonary coccidioidomycosis
    • sandfly - A93.1 Sandfly fever
    • Sao Paulo - A77.0 Spotted fever due to Rickettsia rickettsii
    • scarlet - A38.9 Scarlet fever, uncomplicated
    • seven day (leptospirosis) (autumnal) (Japanese) - A27.89 Other forms of leptospirosis
      • dengue - A90 Dengue fever [classical dengue]
    • shin-bone - A79.0 Trench fever
    • Singapore hemorrhagic - A91 Dengue hemorrhagic fever
    • solar - A90 Dengue fever [classical dengue]
    • Songo - A98.5 Hemorrhagic fever with renal syndrome
    • sore - B00.1 Herpesviral vesicular dermatitis
    • South African tick-bite - A68.1 Tick-borne relapsing fever
    • Southeast Asia hemorrhagic - A91 Dengue hemorrhagic fever
    • spinal - See: Meningitis;
    • spirillary - A25.0 Spirillosis
    • splenic - See: Anthrax;
    • spotted - A77.9 Spotted fever, unspecified
      • American - A77.0 Spotted fever due to Rickettsia rickettsii
      • Brazilian - A77.0 Spotted fever due to Rickettsia rickettsii
      • cerebrospinal meningitis - A39.0 Meningococcal meningitis
      • Colombian - A77.0 Spotted fever due to Rickettsia rickettsii
      • due to Rickettsia
        • australis - A77.3 Spotted fever due to Rickettsia australis
        • conorii - A77.1 Spotted fever due to Rickettsia conorii
        • rickettsii - A77.0 Spotted fever due to Rickettsia rickettsii
        • sibirica - A77.2 Spotted fever due to Rickettsia siberica
        • specified type NEC - A77.8 Other spotted fevers
      • Ehrlichiosis - A77.40 Ehrlichiosis, unspecified
        • due to
          • E. chafeensis - A77.41 Ehrlichiosis chafeensis [E. chafeensis]
          • specified organism NEC - A77.49 Other ehrlichiosis
      • Rocky Mountain - A77.0 Spotted fever due to Rickettsia rickettsii
    • steroid - R50.2 Drug induced fever
    • streptobacillary - A25.1 Streptobacillosis
    • subtertian - B50.9 Plasmodium falciparum malaria, unspecified
    • Sumatran mite - A75.3 Typhus fever due to Rickettsia tsutsugamushi
    • sun - A90 Dengue fever [classical dengue]
    • swamp - A27.9 Leptospirosis, unspecified
    • swine - A02.8 Other specified salmonella infections
    • sylvatic, yellow - A95.0 Sylvatic yellow fever
    • Tahyna - B33.8 Other specified viral diseases
    • tertian - See: Malaria, tertian;
    • Thailand hemorrhagic - A91 Dengue hemorrhagic fever
    • thermic - T67.0 Heatstroke and sunstroke
    • three-day - A93.1 Sandfly fever
    • tick
      • American mountain - A93.2 Colorado tick fever
      • Colorado - A93.2 Colorado tick fever
      • Kemerovo - A93.8 Other specified arthropod-borne viral fevers
      • Mediterranean - A77.1 Spotted fever due to Rickettsia conorii
      • mountain - A93.2 Colorado tick fever
      • nonexanthematous - A93.2 Colorado tick fever
      • Quaranfil - A93.8 Other specified arthropod-borne viral fevers
    • tick-bite NEC - A93.8 Other specified arthropod-borne viral fevers
    • tick-borne (hemorrhagic) NEC - A93.8 Other specified arthropod-borne viral fevers
    • trench - A79.0 Trench fever
    • tsutsugamushi - A75.3 Typhus fever due to Rickettsia tsutsugamushi
    • typhogastric - A01.00 Typhoid fever, unspecified
    • typhoid (abortive) (hemorrhagic) (intermittent) (malignant) - A01.00 Typhoid fever, unspecified
      • complicated by
        • arthritis - A01.04 Typhoid arthritis
        • heart involvement - A01.02 Typhoid fever with heart involvement
        • meningitis - A01.01 Typhoid meningitis
        • osteomyelitis - A01.05 Typhoid osteomyelitis
        • pneumonia - A01.03 Typhoid pneumonia
        • specified NEC - A01.09 Typhoid fever with other complications
    • typhomalarial - See: Malaria;
    • typhus - See: Typhus (fever);
    • undulant - See: Brucellosis;
    • unknown origin - R50.9 Fever, unspecified
    • uveoparotid - D86.89 Sarcoidosis of other sites
    • valley - B38.0 Acute pulmonary coccidioidomycosis
    • Venezuelan equine - A92.2 Venezuelan equine fever
    • vesicular stomatitis - A93.8 Other specified arthropod-borne viral fevers
    • viral hemorrhagic - See: Fever, hemorrhagic, by type of virus;
    • Volhynian - A79.0 Trench fever
    • Wesselsbron (viral) - A92.8 Other specified mosquito-borne viral fevers
    • West
      • African - B50.8 Other severe and complicated Plasmodium falciparum malaria
      • Nile (viral) - A92.30 West Nile virus infection, unspecified
        • with
          • complications NEC - A92.39 West Nile virus infection with other complications
          • cranial nerve disorders - A92.32 West Nile virus infection with other neurologic manifestation
          • encephalitis - A92.31 West Nile virus infection with encephalitis
          • encephalomyelitis - A92.31 West Nile virus infection with encephalitis
          • neurologic manifestation NEC - A92.32 West Nile virus infection with other neurologic manifestation
          • optic neuritis - A92.32 West Nile virus infection with other neurologic manifestation
          • polyradiculitis - A92.32 West Nile virus infection with other neurologic manifestation
    • Whitmore's - See: Melioidosis;
    • Wolhynian - A79.0 Trench fever
    • worm - B83.9 Helminthiasis, unspecified
    • yellow - A95.9 Yellow fever, unspecified
      • jungle - A95.0 Sylvatic yellow fever
      • sylvatic - A95.0 Sylvatic yellow fever
      • urban - A95.1 Urban yellow fever
    • Zika virus - A92.5 Zika virus disease

Footnotes

Arthritis: Acute or chronic inflammation of JOINTS.

Bartonella: A genus of gram-negative bacteria characteristically appearing in chains of several segmenting organisms. It occurs in man and arthropod vectors and is found only in the Andes region of South America. This genus is the etiologic agent of human bartonellosis. The genus Rochalimaea, once considered a separate genus, has recently been combined with the genus Bartonella as a result of high levels of relatedness in 16S rRNA sequence data and DNA hybridization data.

Blister: Visible accumulations of fluid within or beneath the epidermis.

Brain: The part of CENTRAL NERVOUS SYSTEM that is contained within the skull (CRANIUM). Arising from the NEURAL TUBE, the embryonic brain is comprised of three major parts including PROSENCEPHALON (the forebrain); MESENCEPHALON (the midbrain); and RHOMBENCEPHALON (the hindbrain). The developed brain consists of CEREBRUM; CEREBELLUM; and other structures in the BRAIN STEM.

Cameroon: A republic in central Africa lying east of CHAD and the CENTRAL AFRICAN REPUBLIC and west of NIGERIA. The capital is Yaounde.

Colorado: State bounded on the north by Wyoming and Nebraska, on the east by Kansas and Nebraska, on the south by New Mexico and Oklahoma, and on the west by Utah.

Cyprus: An island republic in the eastern Mediterranean Sea. Its capital is Nicosia. It was colonized by the Phoenicians and ancient Greeks and ruled successively by the Assyrian, Persian, Ptolemaic, Roman, and Byzantine Empires. It was under various countries from the 12th to the 20th century but became independent in 1960. The name comes from the Greek Kupros, probably representing the Sumerian kabar or gabar, copper, famous in historic times for its copper mines. The cypress tree is also named after the island. (From Webster's New Geographical Dictionary, 1988, p308 & Room, Brewer's Dictionary of Names, 1992, p134)

Dengue: An acute febrile disease transmitted by the bite of AEDES mosquitoes infected with DENGUE VIRUS. It is self-limiting and characterized by fever, myalgia, headache, and rash. SEVERE DENGUE is a more virulent form of dengue.

Ehrlichiosis: A tick-borne disease characterized by FEVER; HEADACHE; myalgias; ANOREXIA; and occasionally RASH. It is caused by several bacterial species and can produce disease in DOGS; CATTLE; SHEEP; GOATS; HORSES; and humans. The primary species causing human disease are EHRLICHIA CHAFFEENSIS; ANAPLASMA PHAGOCYTOPHILUM; and Ehrlichia ewingii.

Encephalitis: Inflammation of the BRAIN due to infection, autoimmune processes, toxins, and other conditions. Viral infections (see ENCEPHALITIS, VIRAL) are a relatively frequent cause of this condition.

Encephalomyelitis: A general term indicating inflammation of the BRAIN and SPINAL CORD, often used to indicate an infectious process, but also applicable to a variety of autoimmune and toxic-metabolic conditions. There is significant overlap regarding the usage of this term and ENCEPHALITIS in the literature.

Endocarditis: Inflammation of the inner lining of the heart (ENDOCARDIUM), the continuous membrane lining the four chambers and HEART VALVES. It is often caused by microorganisms including bacteria, viruses, fungi, and rickettsiae. Left untreated, endocarditis can damage heart valves and become life-threatening.

Epidemics: Sudden outbreaks of a disease in a country or region not previously recognized in that area, or a rapid increase in the number of new cases of a previous existing endemic disease. Epidemics can also refer to outbreaks of disease in animal or plant populations.

Indiana: State bounded on the north by Lake Michigan and Michigan, on the east by Ohio, on the south by Kentucky, and on the west by Illinois.

Malta: An independent state consisting of three islands: Malta, Comino and Gozo, located in the Mediterranean Sea, south of Sicily. Its capital is Valetta.

Meningitis: Inflammation of the coverings of the brain and/or spinal cord, which consist of the PIA MATER; ARACHNOID; and DURA MATER. Infections (viral, bacterial, and fungal) are the most common causes of this condition, but subarachnoid hemorrhage (HEMORRHAGES, SUBARACHNOID), chemical irritation (chemical MENINGITIS), granulomatous conditions, neoplastic conditions (CARCINOMATOUS MENINGITIS), and other inflammatory conditions may produce this syndrome. (From Joynt, Clinical Neurology, 1994, Ch24, p6)

Infant, Newborn: An infant during the first 28 days after birth.

Optic Neuritis: Inflammation of the optic nerve. Commonly associated conditions include autoimmune disorders such as MULTIPLE SCLEROSIS, infections, and granulomatous diseases. Clinical features include retro-orbital pain that is aggravated by eye movement, loss of color vision, and contrast sensitivity that may progress to severe visual loss, an afferent pupillary defect (Marcus-Gunn pupil), and in some instances optic disc hyperemia and swelling. Inflammation may occur in the portion of the nerve within the globe (neuropapillitis or anterior optic neuritis) or the portion behind the globe (retrobulbar neuritis or posterior optic neuritis).

Osteomyelitis: INFLAMMATION of the bone as a result of infection. It may be caused by a variety of infectious agents, especially pyogenic (PUS - producing) BACTERIA.

Parrots: BIRDS of the large family Psittacidae, widely distributed in tropical regions and having a distinctive stout, curved hooked bill. The family includes LOVEBIRDS; AMAZON PARROTS; conures; PARAKEETS; and many other kinds of parrots.

Pericarditis: Inflammation of the PERICARDIUM from various origins, such as infection, neoplasm, autoimmune process, injuries, or drug-induced. Pericarditis usually leads to PERICARDIAL EFFUSION, or CONSTRICTIVE PERICARDITIS.

Phlebotomus: A genus of PSYCHODIDAE which functions as the vector of a number of pathogenic organisms, including LEISHMANIA DONOVANI; LEISHMANIA TROPICA; Bartonella bacilliformis, and the Pappataci fever virus (SANDFLY FEVER NAPLES VIRUS).

Plasmodium ovale: A species of protozoan parasite causing MALARIA. It is the rarest of the four species of PLASMODIUM infecting humans, but is common in West African countries and neighboring areas.

Pneumonia: Infection of the lung often accompanied by inflammation.

Rabbits: A burrowing plant-eating mammal with hind limbs that are longer than its fore limbs. It belongs to the family Leporidae of the order Lagomorpha, and in contrast to hares, possesses 22 instead of 24 pairs of chromosomes.

Psychodidae: Small, hairy, moth-like flies which are of considerable public health importance as vectors of certain pathogenic organisms. Important disease-related genera are PHLEBOTOMUS, Lutzomyia, and Sergentomyia.

Singapore: Country of islands in Southeastern Asia, islands between Malaysia and Indonesia. The capital is Singapore.

Spirillum: A genus of gram-negative, curved and spiral-shaped bacteria found in stagnant, freshwater environments. These organisms are motile by bipolar tufts of flagella having a long wavelength and about one helical turn. Some species of Spirillum cause a form of RAT-BITE FEVER.

Wetlands: Environments or habitats at the interface between truly terrestrial ecosystems and truly aquatic systems making them different from each yet highly dependent on both. Adaptations to low soil oxygen characterize many wetland species.

Swine: Any of various animals that constitute the family Suidae and comprise stout-bodied, short-legged omnivorous mammals with thick skin, usually covered with coarse bristles, a rather long mobile snout, and small tail. Included are the genera Babyrousa, Phacochoerus (wart hogs), and Sus, the latter containing the domestic pig (see SUS SCROFA).

Thailand: Formerly known as Siam, this is a Southeast Asian nation at the center of the Indochina peninsula. Bangkok is the capital city.

Ticks: Blood-sucking acarid parasites of the order Ixodida comprising two families: the softbacked ticks (ARGASIDAE) and hardbacked ticks (IXODIDAE). Ticks are larger than their relatives, the MITES. They penetrate the skin of their host by means of highly specialized, hooked mouth parts and feed on its blood. Ticks attack all groups of terrestrial vertebrates. In humans they are responsible for many TICK-BORNE DISEASES, including the transmission of ROCKY MOUNTAIN SPOTTED FEVER; TULAREMIA; BABESIOSIS; AFRICAN SWINE FEVER; and RELAPSING FEVER. (From Barnes, Invertebrate Zoology, 5th ed, pp543-44)

Vesicular Stomatitis: A viral disease caused by at least two distinct species (serotypes) in the VESICULOVIRUS genus: VESICULAR STOMATITIS INDIANA VIRUS and VESICULAR STOMATITIS NEW JERSEY VIRUS. It is characterized by vesicular eruptions on the ORAL MUCOSA in cattle, horses, pigs, and other animals. In humans, vesicular stomatitis causes an acute influenza-like illness.

Zika Virus: An arbovirus in the FLAVIVIRUS genus of the family FLAVIVIRIDAE. Originally isolated in the Zika Forest of UGANDA it has been introduced to Asia and the Americas.

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