parasitologia importante 2010 2
TRANSCRIPT
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La parasitología en el
Laboratorio Clínico
SUAREZ AGUILAR DANIEL ANGEL
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RELACIONES BIOLOGICAS:
TIPOS
COMENSALISMO
MUTUALISMO
PARASITISMO
Tiburon-Remora
Vaca-Boyero
Hombre-Ascaris
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CLASIFICACION:SEGUN
TAXONOMIA
REINO
PHYLUM
FAMILIA
CLASE
ORDEN
GENERO
ESPECIE
Protista
Excavata
Metamonada
Eopharyngia
Diplomonadida
Giardia
lamblia
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CLASIFICACION:SEGUN
TAXONOMIA
REINO
PHYLUM
FAMILIA
CLASE
ORDEN
GENERO
ESPECIE
Animalia
Nematoda
Secementea
Ascaradida
Ascaradidae
Ascaris
lumbricoides
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CLASIFICACION:SEGUNT
AX
ON
OM
IA
Sarcomastigophora
Apicomplexa
Platyhelminthes
Ciliophora
Blastocystis
Nemathelminthes
Mastigophora
Sarcodina
Sporozoasida
Pr
ot
oz
oa
He
lm
int
hs
Litostomatea
Trematoda
Cestoidea
Nematoda
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CLASIFICACION:SEGUN
NECESIDAD
OCASIONAL
OBLIGADO
PERIODICO
Strongyloides
Trichomonas
Taenia
Requiere de un Huésped
Puede adaptarse :Vida Libre a Parasitaria
Requiere un Huésped durante una etapa
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GENERALIDADES-CLASIFICACION:
LOCALIZACION
ECTOPARASITO
ENDOPARASITO
INFECCION
INFESTACION
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GENERALIDADES-CLASIFICACION:
FUENTE
HOLOPARASITISMO
HEMIPARASITISMO
1 fuente
+2 fuentes
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CLASIFICACION-CICLO VIDA:
CICLO VIDA
MONOXENICO
HETEROXENICO
1 huesped
+2 huespedes
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CLASIFICACION-SEGUN:
CELULAS
PROTOZOOS
METAZOOS
Unicell
Pluricell
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TIPOS DE HUESPED:
HUESPED
ESPECIFICO
DEFINITIVO1. Posee estado adulto
2. Reproduce sexualmente•Gusano Adulto (Helmintos)
•Fase Sexuada (Protozoos )
1. Cumple su ciclo Totalidad
2. Cumple la fase
forzosamente debe
cumplir
3. Cumple una fase
concreta de su ciclo
Vaca-Hombre (T. saginata)
Mosquito (Plasmodium )
Hombre (T. saginata)
Gato (Toxoplasma)
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TIPOS DE HUESPED:
HUESPED
INTERMEDIARIO
PARATENICO1. Evolución Incompleta
2. Corta el ciclo
3. Accidental
1. Desarrolla su fase
• Larvaria
• AsexuadaVaca(T. saginata)
Hombre (Toxoplasma)
Raton(Toxocara canis)
Gorgojo (Hymenolepis n.)
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TIPOS DE HUESPED:
HUESPED
RESERVORIO
VICARIANTE1. Evolución completa
2. Corta el ciclo
3. Accidental
1. Alberga al parasito
• Multiplica
• Latente
2. Fuente Potencial
Infeccion
Oso Perezoso(Leishmania)
Gallina,Perro (Trypanosoma)
Hombre(Echinococcus)
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COMPOSICION QUIMICA:
QUIMICAMENTE
GLUCIDOS
PROTEINAS
LIPIDOS
Glucogeno
Queratina:Cestodes
Esclerotina:Hv,Qt
Fosfolipidos
Esteroles
Trigliceridos
Fuente Energía
Fuente Estructural
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RESPIRACION METABOLISMO:
METABOLISMO
AEROBIO
ANAEROBIO
VIAS
Oxigeno
Fumarato
Glucolisis
Ciclo Krebs
Via Glioxalato
Pentosas
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ANTIGENOS PARASITARIOS:
CARACTERIZAN
VARIEDAD
COMPLEJIDAD
DIVERSIDAD
1. Especies
2. Tamaño
1. Mosaico Ag:
a. Estructurales
• Superficie
b. Metabólicos
• Secretados
• Excretados
1. Variación
Caracteres:• Estadios evolutivos
• Localizacion
•Glucoproteinas
•Polisacaridos
•Lipoporteinas
•Lipopolisacaridos
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ANTIGENOS PARASITARIOS:
CARACTERIZAN
HETEROGENEIDAD
INMUNOGENICIDAD
RESPUESTA
INMUNE
1. Total:a. Celular
b. Humoral
2. Nulaa. Adaptación
a. Parasito1-Parasito2
b. Parasito-Hombre
1. Mayor:• Hemoparasitos
• Histioparasitos
2. Menor• Enteroparasitos
1. Ag comunes:
•Glucoproteinas
•Polisacaridos
•Lipoporteinas
•Lipopolisacaridos
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MECANISMOS EVASION:
MECANISMOANTIGENICO
IMITACION
DEPLECION
VARIACION
1. Perdida Ag:• Leishmania
• S. mansoni
1. Composicion Quimica:• Trypanosomas
• Plasmodium
• Babesia
1. Antigenos Huesped:• S. mansoni
2. Revisten Ac
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MECANISMOS EVASION:
MECANISMOANTIGENICO
INMUNOTOXICIDAD
INMUNOSUPRESION
INMUNODIVERSION
1. Altera Respuesta
Cell y Humoral:• Leishmania
• S. mansoni
• Trichinella
1. Distrae Rpta Humoral:a. Activa LB policlonal
• Plasmodium
1. Producción Toxinas:• Fasciola
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MECANISMOS EVASION:
MECANISMOANTIGENICO
INMUNOINDIFEREN
CIA
ANTICOMPLEMENTA
RIA
1. Inhibe Complemento:• Cestodos
1. Sobrevivir Intracell:
a. Inhibe Lisozomas• Toxoplasma
• Trypanosomas c.
• Leismania d.
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ACCIÓN PATOLÓGICA
Mecánico:
– Obstrucción (Ascaris-GA,Filarias,Echinococcus)
Traumático:
– Daño tisular o celular (Ascaris-Lv, Entamoeba h.)
Metaplasica-Neoplasia :
– Transformación de tejido
Shistosoma-Higado,colon,recto,vejiga
Fasciola-Vias Biliares
Paragonimus-Pulmonar
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ACCIÓN PATOLÓGICA
Expoliadora :
– Alteraciones nutricionales
Diphyllobothrium-Contenido Intestinal Vit B12
Ancylostoma-Hemoglobina Extraeritrocitariamente
Plasmodium-Intraeritrocitariamente
Toxica :
– Sustancias Secretadas o Vehiculizadas:Necrosis Litica
Entamoeba-Colon
Fasciola-Higado
Arañas,Escorpiones,Garrapatas,Avispas,Hormigas-VenenosEnzimas proteolíticas
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ACCIÓN PATOLÓGICA
Citopatogena :
– Lisis Celular
Plasmodium:Eritrocito,Hepatocito
Leishmania:Macrofagos
Toxoplasma
Infección Secundaria :
– Invasion bacterias Piogenas
Ancylostoma-Lesion Cutanea
Entamoeba-Colitis
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MECANISMOS DE REPRODUCCION
–SEXUAL
Conjugación
Singamia
Sexos
separados
Hermafroditas
–ASEXUALFision Binaria
– Longitudinal
– Transversal
Fision multiple
Esquizogonia
Endodiogenia
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Esquizogonia
Fision Binaria Simple
ASEXUAL
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Endodiogenia
ASEXUAL
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Singamia
SEXUAL
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Conjugacion
SEXUAL
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ESPORULACION
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FUENTE DE INFECCION
–PERSONA PORTADORA
Asintomático
Sintomatico
–OBJETOS CONTAMINADO
–AGUA CONTAMINADO
–ALIMENTOS CONTAMINADO
–SUELO CONTAMINADO
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FUENTE DE INFECCION
–ANIMALES PARASITADO
Vacuno
Porcino
Ovino
Domésticos
Crustáceos
Peces
Roedores
Otros
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TRASMISION
–MECANISMO :
Ingestión :
Inhalación :
Inoculación :
Penetración Activa o Pasiva-Arrastre
Congenita:
Sexual
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TRASMISION
–VIA INFECCION:
Sistema Digestivo
Sistema Respiratorio
Cutánea,Mucosa
Transplacentaria
Genito Urinaria
Otros
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ESTADIOS PARASITARIOS
–ESTADIOS INFECTANTE
–ESTADIO PATOGENO
–ESTADIO DIAGNOSTICO
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LOCALIZACIÓN DE LA LESION:
Sistema Digestivo
Sistema Respiratorio
Sistema Nervioso
Sistema Linfático
Tejido Muscular
Tejido Sanguíneo
Tejido Subcutáneo
Órganos Sentidos
Piel
Otros
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V. Clases de parásitos:
Permanentes
Temporales
Endoparásitos
Ectoparásitos
Patógenos
No patógenos
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VI. Métodos de diagnóstico:
1. Métodos directos:
Preparaciones frescas:
Mx de heces directa o concentrada utilizando solución de lugol y solución salina.
Coloraciones:
Kinyou, Hematoxilina, Ziehl Neelsen, etc.
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VI. Métodos de diagnóstico:
2. Métodos indirectos:
Precipitación
Aglutinación
Inmunofluorescencia
ELISA
Western blot
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VII. Parásitos del hombre y de los animales:
1. Protozoarios
1.1 Protozoarios intestinales
1.1.1 Amebas Entamoeba coli
Entamoeba histolytica
Iodamoeba butschlii
Entamoeba gingivalis
1.1.2 Flagelados Giardia lamblia
Chilomastix mesnilii
Trichomonas vaginalis
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Entamoeba coli
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Entamoeba histolytica
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Iodamoeba butschlii
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VII. Parásitos del hombre y de los animales:
1. Protozoarios
1.1 Protozoarios intestinales
1.1.1 Amebas Entamoeba coli
Entamoeba histolytica
Iodamoeba butschlii
Entamoeba gingivalis
1.1.2 Flagelados Giardia lamblia
Chilomastix mesnilii
Trichomonas vaginalis
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Giardia lamblia
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Chilomastix mesnilii
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Trichomonas vaginalis
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VII. Parásitos del hombre y de los animales:
1.1.3 Ciliados Balantidium coli
1.1.4 Coccidios Isospora belli
Cryptosporidium parvum
Sarcocystis spp.
Cyclospora cayetanensis
1.1.5 Phylum Microsporidium
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Balantidium coli
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VII. Parásitos del hombre y de los animales:
1.1.3 Ciliados Balantidium coli
1.1.4 Coccidios Isospora belli
Cryptosporidium parvum
Sarcocystis spp.
Cyclospora cayetanensis
1.1.5 Phylum Microsporidium
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Esporoquiste
Esporoblasto
EporozoitosCryptosporidium
Sarcocystis
Isospora
Cyclospora
Ooquistes de Coccidios
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Cryptosporidium parvum
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Cyclospora cayetanensis
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VII. Parásitos del hombre y de los animales:
1.2 Protozoarios hemáticos Plasmodium falciparum
Plasmodium vivax
Plasmodium malariae
Plasmodium ovale
1.3 Protozoarios tisulares Trypanosoma cruzi
Leishmania peruviana
Leishmania brasiliensis
Toxoplasma gondii
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Plasmodium falciparum
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Plasmodium vivax
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Plasmodium malariae
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Plasmodium ovale
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VII. Parásitos del hombre y de los animales:
1.2 Protozoarios hemáticos Plasmodium falciparum
Plasmodium vivax
Plasmodium malariae
Plasmodium ovale
1.3 Protozoarios tisulares Trypanosoma cruzi
Leishmania peruviana
Leishmania brasiliensis
Toxoplasma gondii
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Trypanosoma cruzi
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Leishmania peruviana
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Leishmania brasiliensis
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VII. Parásitos del hombre y de los animales:
2. Helmintos2.1 Platelmintos (gusanos planos)
2.1.1 Tremátodos Fasciola hepática Paragonimus mexicanus Schistosoma mansoni
2.1.2 Céstodes Taenia saginata Taenia solium Diphyllobothrium latum Diphyllobothrium pacificum Echinococcus granulosus Hymenolepis nana
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Fasciola hepática
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Paragonimus mexicanus
huevo
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Hospederos Intermediariosde Paragonimus mexicanus
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Schistosoma mansoni
huevos
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VII. Parásitos del hombre y de los animales:
2. Helmintos2.1 Platelmintos (gusanos planos)
2.1.1 Tremátodos Fasciola hepática Paragonimus mexicanus Schistosoma mansoni
2.1.2 Céstodes Taenia saginata Taenia solium Diphyllobothrium latum Diphyllobothrium pacificum Echinococcus granulosus Hymenolepis nana
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Taenia sp
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Huevo Cisticercos Adulto
Taenia sp
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Taenia saginata Taenia solium
Taenia sp: Escolex
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Cerebral Ocular
Cisticercosis
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Diphyllobothrium pacificum
adulto huevo
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Echinococcus granulosus
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Hymenolepis nana
adulto huevo
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VII. Parásitos del hombre y de los animales:
2. Helmintos
2.2 Nematelmintos (gusanos redondos) Áscaris lumbricoides
Strongyloides stercoralis
Trichuris trichiura
Enterobius vermicularis
Ancylostoma duodenale
Necator americanus
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Áscaris lumbricoides
adulto huevo
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Trichuris trichiura
adulto huevo
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Enterobius vermicularis
adulto huevo
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Ancylostoma duodenaleNecator americanus
Huevo de
Ancylostoma
duodenale o
Necator
americanus
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VII. Parásitos del hombre y de los animales:
3. Artrópodos
3.1 Insecta Pediculus humanus
Phthirus pubis (ladilla)
Dermatobia hominis
Cochliomyia hominivórax
Cordilobia antropófaga
Hypoderma bovis
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Pediculus humanus - Phthirus pubis
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Phthiriasis palpebral
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Dermatobia hominis
adulto larva
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Cochliomyia hominivórax
larvas
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MIASIS: Cavidad orbitaria; herida
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VII. Parásitos del hombre y de los animales:
3. Artrópodos
3.2 Arácnida Loxosceles laeta
Latrodectus mactans
Sarcoptes scabiei
Demodex folliculorum
Dermatophagoides pteronyssinus
3.1 Crustácea
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Loxosceles laeta
Cuadro toxico producido por el veneno de Loxosceles laeta
(araña de los rincones, araña violín, araña casera).
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Loxoscelismo Cutaneo Necrotico
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Latrodectus mactans
Viuda negra, araña de los pajonales, araña del campo,
lucacha. Tx: Suero antilatrodectus dentro de las 6 horas.
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Sarcoptes scabiei – Dermatophagoides pteronyssinus
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Sarna común Sarna noruega
Sarcoptes scabiei
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Demodex folliculorum
Adulto En el folículo piloso
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FINPOR
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DIAGNOSTICO DE LABORATORIO
Heces
Orina
Esputo
Biopia
Sangre
Conjuntiva
Medula Osea
Suero
Secreciones
Liquidos Biológicos
– LCR
– Peritoneal
– Sinovial
Aspirados
Raspado
Otro
MUESTRA BIOLOGICA
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DIAGNOSTICO DE LABORATORIO
METODO DIAGNOSTICO
• Examen Macroscopico
• Examen Microscopico
Preparación Humeda
Tincion Permanente
Concentrado de Heces
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DIAGNOSTICO DE LABORATORIO
METODO DIAGNOSTICO
• Serologia
Aglutinación
Precipitación
Fijación Complemento
Enzimoinmunoensayo
Radioinmunoanalisis
Inmunofluorescencia
Inmunoelectroforesis
Inmunodifusion
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DIAGNOSTICO DE LABORATORIO
METODO DIAGNOSTICO
• Diagnostico Molecular
• Cultivo
• Inoculación Animales
• Xenodiagnostico