<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>1870-3453</journal-id>
<journal-title><![CDATA[Revista mexicana de biodiversidad]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Mex. Biodiv.]]></abbrev-journal-title>
<issn>1870-3453</issn>
<publisher>
<publisher-name><![CDATA[Instituto de Biología]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1870-34532007000100020</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Primer registro de Ixodes cookei (Acari: Ixodidae) para México]]></article-title>
<article-title xml:lang="en"><![CDATA[First record of Ixodes cookei (Acari: Ixodidae) in Mexico]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Montiel-Parra]]></surname>
<given-names><![CDATA[Griselda]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Fuentes-Moreno]]></surname>
<given-names><![CDATA[Helxine]]></given-names>
</name>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vargas]]></surname>
<given-names><![CDATA[Margarita]]></given-names>
</name>
<xref ref-type="aff" rid="A02"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Universidad Nacional Autónoma de México Instituto de Biología Departamento de Zoología]]></institution>
<addr-line><![CDATA[México D. F. ]]></addr-line>
</aff>
<aff id="A02">
<institution><![CDATA[,Instituto Politécnico Nacional Escuela Nacional de Ciencias Biológicas ]]></institution>
<addr-line><![CDATA[México, D.F. ]]></addr-line>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2007</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2007</year>
</pub-date>
<volume>78</volume>
<numero>1</numero>
<fpage>205</fpage>
<lpage>206</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1870-34532007000100020&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1870-34532007000100020&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1870-34532007000100020&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[En este estudio se aportan los primeros datos de la garrapata Ixodes cookei Packard, 1869 en México. Un macho, 7 larvas y 15 ninfas se recolectaron en los estados de Nuevo León y Veracruz. Además, se registra al cacomixtle Bassariscus astutus como un nuevo huésped.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[The presence of Ixodes cookei Packard, 1869 is documented for the first time in Mexico, based on one male, 7 larvae and 15 nymphs collected in Veracruz and Nuevo Leon. Additionally, cacomixtle (Bassariscus astutus) is presented as a new host record.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Ixodes cookei]]></kwd>
<kwd lng="es"><![CDATA[México]]></kwd>
<kwd lng="es"><![CDATA[Bassariscus astutus]]></kwd>
<kwd lng="en"><![CDATA[Ixodes cookei]]></kwd>
<kwd lng="en"><![CDATA[Mexico]]></kwd>
<kwd lng="en"><![CDATA[Bassariscus astutus]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[ <p align="justify"><font face="verdana" size="4">Nota  cient&iacute;fica</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="center"><font face="verdana" size="4"><b>Primer registro de <i>Ixodes  cookei</i> (Acari: Ixodidae) para M&eacute;xico</b></font></p>     <p align="center"><font face="verdana" size="2">&nbsp;</font></p>     <p align="center"><font face="verdana" size="3"><b>First record of <i>Ixodes  cookei</i> (Acari: Ixodidae) in Mexico</b></font></p>     <p align="center"><font face="verdana" size="2">&nbsp;</font></p>     <p align="center"><font face="verdana" size="2"><b>Griselda Montiel&#150;Parra<sup>1</sup> *,  Helxine Fuentes&#150;Moreno y Margarita Vargas<sup>2</sup></b></font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><i><sup>1</sup>Departamento de Zoolog&iacute;a, Instituto de  Biolog&iacute;a, Universidad Nacional Aut&oacute;noma de M&eacute;xico, 3er Circuito Exterior s/n.  Apartado postal 70&#150;153, 04510 M&eacute;xico D. F.   </i></font></p>     <p align="justify"><font face="verdana" size="2"><i><sup>2</sup>Escuela  Nacional de Ciencias Biol&oacute;gicas, Instituto Polit&eacute;cnico Nacional, Prolongaci&oacute;n  de Carpio y Plan de Ayala, Santo Tom&aacute;s, 11340 M&eacute;xico, D.F</i>.</font></p>     ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><b>*Correspondencia:</b>    <br>   <a href="mailto:grismp@ibiologia.unam.mx ">grismp@ibiologia.unam.mx </a></font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2">Recibido:  16 enero 2006         <br>   Aceptado:  03 agosto 2006</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><b>Resumen</b></font></p>     <p align="justify"><font face="verdana" size="2">En este estudio se aportan los primeros datos  de la garrapata <i>Ixodes cookei</i> Packard, 1869 en M&eacute;xico. Un macho, 7  larvas y 15 ninfas se recolectaron en los estados de Nuevo Le&oacute;n y Veracruz.  Adem&aacute;s, se registra al cacomixtle <i>Bassariscus astutus</i> como un nuevo  hu&eacute;sped.</font></p>     <p align="justify"><font face="verdana" size="2"><b>Palabras clave</b>: <i>Ixodes cookei</i>, M&eacute;xico, <i>Bassariscus  astutus.</i></font></p>     ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><b>Abstract</b></font></p>     <p align="justify"><font face="verdana" size="2">The presence of <i>Ixodes cookei</i> Packard,  1869 is documented for the first time in Mexico, based on one male, 7 larvae and  15 nymphs collected in Veracruz and Nuevo Leon. Additionally, cacomixtle (<i>Bassariscus  astutus</i>) is presented as a new host record. </font></p>     <p align="justify"><font face="verdana" size="2"><b>Key  words</b>: <i>Ixodes cookei</i>, Mexico, <i>Bassariscus astutus.</i></font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>       <p align="justify"><font face="verdana" size="2">Las garrapatas del g&eacute;nero <i>Ixodes</i> son par&aacute;sitos hemat&oacute;fagos en todos sus estadios de desarrollo. Tienen gran  importancia desde el punto de vista econ&oacute;mico, veterinario y de salud p&uacute;blica,  debido a su capacidad de da&ntilde;ar con la acci&oacute;n directa de toxinas que inyectan a  su hu&eacute;sped mientras se alimentan (par&aacute;lisis) o por que pueden transmitir una  gran variedad de agentes infecciosos al hombre y animales, tales como el virus  de Powassan (POW),  la espiroqueta <i>Borrelia burgdorferi</i>, entre otras (Durden y Keirans,  1996). Del g&eacute;nero <i>Ixodes </i>se conocen 243 especies (Barros&#150;Battesti et  al., 2003; Horak et al., 2002; Keirans y Ajohda, 2003). La especie <i>Ixodes  cookei</i> Packard, 1869 se considera el principal vector del virus POW, el  cual ha sido aislado en repetidas ocasiones de esta garrapata. Este virus puede  causar la encefalitis, meningoencefalitis o meningitis en el hombre (Artsob,  1989). La garrapata es par&aacute;sita de carn&iacute;voros y est&aacute; ampliamente distribuida en  Estados Unidos y Canad&aacute;. Las larvas, ninfas y adultos se alimentan en una  variedad de hu&eacute;spedes, tales como: <i>Mephitis mephitis</i>, <i>Didelphis  virginiana</i>, <i>Urocyon cinereoargenteus floridanus</i>, <i>Procyon lotor</i>, <i>Canis latrans</i>, <i>Microtus pennsylvanicus</i>, <i>Rattus &nbsp;norvegicus</i>, <i>Ochrotomys nuttalli</i>, <i>Peromyscus  maniculatus bairdii</i>, <i>Erethizon dorsatum</i>, <i>Castor c</i>. <i>canadensis</i>, <i>Cynomys</i> sp<i>.</i>, <i>Sylvilagus floridanus, Lepus americanus</i>, <i>Sciurus </i>sp., <i>S. carolinensis</i>, <i>Tamiasciurus hudsonicus</i>, <i>Tamias  striatus</i>, <i>Marmota monax</i>, <i>Martes americana, M. &nbsp;</i><i>p. pennanti, Lutra canadensis</i>, <i>Mustela </i>sp<i>., M. erminea, &nbsp;M. frenata</i> y <i>M. vison</i>; tambi&eacute;n se  han registrado en humanos y animales dom&eacute;sticos (perro y gato) (Bishopp y  Trembley, 1945; Clifford et al., 1961; Cooley y Kohls, 1945; Durden y  Richardson, 2003; Fish y Dowler, 1989; Gregson, 1956; Hall et al., 1991;  Keirans y Litwak, 1989). Ocasionalmente buscan a sus hu&eacute;spedes en la vegetaci&oacute;n  y con frecuencia se encuentran en los nidos de mam&iacute;feros de tama&ntilde;o mediano o  cerca de ellos. En esta nota se registra por primera vez para M&eacute;xico, la  presencia de un macho, 7 larvas y 15 ninfas de <i>Ixodes cookei</i> en los  estados de Veracruz y Nuevo Le&oacute;n, encontradas en una excreta de <i>Urocyon  cinereoargenteus</i> y sobre <i>Peromyscus</i> sp. y <i>Bassariscus astutus</i>.  Este &uacute;ltimo se registra como un nuevo hu&eacute;sped para <i>I. cookei</i>.</font></p>       <p align="justify"><font face="verdana" size="2">    <i>Material  examinado. </i>M&Eacute;XICO:  VERACRUZ: 1 macho en una excreta de <i>Urocyon cinereoargenteus</i> en &Aacute;rea  Natural Protegida San Juan del Monte, 3.2 km SO Municipio Las Vigas de Ram&iacute;rez,  2 420 m snm, 25 de agosto de &nbsp;2003,  Helxine Fuentes Moreno, col. (250803&#150;T3&#150;8:UC); NUEVO LE&Oacute;N: 5 larvas y 15 ninfas  sobre <i>Bassariscus astutus</i>, 8.0 km N, 4.1 km O San Josecito, 1520 m snm,  22/II/90, Margarita Vargas, col. (EcMV&#150;1271); 2 larvas en <i>Peromyscus</i> sp.  10.8 km S, 10.8 km E San Josecito, Nuevo Le&oacute;n, 2720 m snm, 12/06/91, Margarita  Vargas, col. (EcMV&#150;2176). </font></p>       <p align="justify"><font face="verdana" size="2">El  material biol&oacute;gico se encuentra depositado en la Colecci&oacute;n Nacional de &Aacute;caros  (CNAC) del Instituto de Biolog&iacute;a, Universidad Nacional Aut&oacute;noma de M&eacute;xico. </font></p>       <p align="justify"><font face="verdana" size="2"> Es  importante profundizar en el conocimiento de la distribuci&oacute;n y presencia de las  garrapatas del g&eacute;nero <i>Ixodes </i>en el pa&iacute;s, sobre todo de aquellas especies  que han sido escasamente estudiadas, debido a que son poco frecuentes  parasitando a los humanos, pero son transmisoras de agentes pat&oacute;genos a sus  hu&eacute;spedes. La presencia de <i>I. cookei</i> en M&eacute;xico es relevante por tratarse  del principal vector del virus POW; hay que agregar que inspecciones realizadas  en humanos y animales en el estado de Sonora y pruebas por inhibici&oacute;n de la  hemaglutinaci&oacute;n (HI) proporcionaron evidencia de la circulaci&oacute;n del virus de  POW en M&eacute;xico. Este virus tambi&eacute;n ha sido aislado en Estados Unidos y Canad&aacute; en  las especies: <i>Ixodes marxi</i>, <i>I. spinipalpus</i> (sic) y <i>Dermacentor  andersoni </i>(Artsob, 1989); de esta &uacute;ltima especie se tienen hallazgos  ocasionales en el norte del pa&iacute;s, pero se desconoce si son poblaciones ya  establecidas (Hoffmann y L&oacute;pez&#150;Campos, 2000). Lo anterior hace necesario un  monitoreo de la especie <i>I. cookei,</i> as&iacute; como estudios epidemiol&oacute;gicos en  los estados del norte, debido a la probable aparici&oacute;n del virus de POW. Por  otra parte, es necesaria la investigaci&oacute;n experimental con los diferentes  estadios de desarrollo de <i>I. cookei</i>, empleando diversos hu&eacute;spedes, para  poderlos descartar como vectores potenciales de &eacute;sta y otras enfermedades.</font></p>       <p align="justify"><font face="verdana" size="2">Los autores agradecen a los proyectos Caracterizaci&oacute;n antig&eacute;nica  y molecular de cepas <i>Borrelia burgdorferi </i>aisladas de enfermos, roedores  o vector de la Rep&uacute;blica Mexicana (CONACyT&#150;36694&#150;M) y Artr&oacute;podos asociados a  mam&iacute;feros silvestres mexicanos (DEPI&#150;917273), por el apoyo log&iacute;stico; al Bi&oacute;l.  Jos&eacute; Zepeda por la colecta de mam&iacute;feros en Nuevo Le&oacute;n; a la Bi&oacute;l. Claudia  Alejandra Rivera R&iacute;os por la informaci&oacute;n proporcionada; a Oscar Francke y a dos  revisores an&oacute;nimos por sus comentarios y sugerencias al manuscrito.</font></p>       ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2">&nbsp;</font></p>       <p align="justify"><font face="verdana" size="2"><b>Literatura citada</b></font></p>       <!-- ref --><p align="justify"><font face="verdana" size="2">Artsob, H. 1989. Powassan encephalitis. <i>In</i> The &nbsp;arboviruses: epidemiology and ecology, vol.  IV, T. &nbsp;Monath (ed.). CRC, Boca Raton,  Florida, p. 29&#150;50.</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=7518898&pid=S1870-3453200700010002000001&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p align="justify"><font face="verdana" size="2">Barros&#150;Battesti, D. M., M.  Arzua, M. Pichorim y J. E. &nbsp;Keirans.  2003. <i>Ixodes</i> (<i>Multidentatus</i>) <i>paranaensis &nbsp;Ixodes cookei</i>n. sp. 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