| [susceptibility of aedes aegypti larvae to parasitism by romanomermis culicivorax in laboratory and field conditions in oaxaca, mexico]. | in june 1996 in the state of oaxaca, mexico, larvae of the mosquito species aedes aegypti were exposed to infective preparasites of the nematode romanomermis culicivorax, ross and smith, in the laboratory and in the field. for the laboratory experiments larvae in instars i-iv were used; they had been collected in natural reservoirs. the laboratory experiments were carried out in triplicate, with 100 larvae of each larval stage per experiment. three preparasite application dosage ratios were test ... | 2000 | 11190968 |
| large genetic distances among aedes aegypti populations along the south pacific coast of mexico. | a population genetic analysis was conducted among 20 aedes aegypti collections from 19 cities along the south pacific coast in the mexican states of guerrero, oaxaca, and chiapas and in coatepeque, guatemala. genetic variation was scored at 131 random amplified polymorphic dna loci. the amount of genetic differentiation among collections was approximately 3 times as great as detected among collections in an earlier study in northeastern mexico. regression analysis of linear or road distances on ... | 2002 | 12201597 |
| evidence of vertical transmission of dengue virus in two endemic localities in the state of oaxaca, mexico. | dengue virus is spread in tropical areas of the world and is the causative agent of dengue fever and dengue hemorrhagic fever. it is horizontally transmitted to humans by infected aedes mosquitoes, but it is also able to be vertically or transovarially transmitted to insect progeny. | 2007 | 17700030 |
| specific genetic markers for detecting subtypes of dengue virus serotype-2 in isolates from the states of oaxaca and veracruz, mexico. | dengue (den) is an infectious disease caused by the den virus (denv), which belongs to the flavivirus genus in the family flaviviridae. it has a (+) sense rna genome and is mainly transmitted to humans by the vector mosquito aedes aegypti. dengue fever (df) and dengue hemorrhagic fever (dhf) are caused by one of four closely related virus serotypes (denv-1, denv-2, denv-3 and denv-4). epidemiological and evolutionary studies have indicated that host and viral factors are involved in determining ... | 2008 | 18625078 |