Abstract:
BACKGROUND:Cues that guide gravid Anopheles gambiae sensu lato to oviposition sites can be manipulated to create new strategies for monitoring and controlling malaria vectors. However, progress towards identifying such cues is slow in part due to the lack of appropriate tools for investigating long-range attraction to putative oviposition substrates. This study aimed to develop a relatively easy-to-use bioassay system that can effectively analyse chemical attraction of gravid Anopheles gambiae sensu stricto. METHODS:BG-Sentinel™ mosquito traps that use fans to dispense odourants were modified to contain aqueous substrates. Choice tests with two identical traps set in an 80 m(2) screened semi-field system were used to analyse the catch efficacy of the traps and the effectiveness of the bioassay. A different batch of 200 gravid An. gambiae s.s. was released on every experimental night. Choices tested were (1) distilled versus distilled water (baseline) and (2) distilled water versus soil infusion. Further, comparisons were made of distilled water and soil infusions both containing 150 g/l of Sodium Chloride (NaCl). Sodium Chloride is known to affect the release rate of volatiles from organic substrates. RESULTS:When both traps contained distilled water, 45% (95 confidence interval (CI) 33-57%) of all released mosquitoes were trapped. The proportion increased to 84% (95 CI 73-91%) when traps contained soil infusions. In choice tests, a gravid female was twice as likely to be trapped in the test trap with soil infusion as in the trap with distilled water (odds ratio (OR) 1.8, 95% CI 1.3-2.6). Furthermore, the attraction of gravid females towards the test trap with infusion more than tripled (OR 3.4, 95% CI 2.4-4.8) when salt was added to the substrates. CONCLUSION:Minor modifications of the BG-Sentinel™ mosquito trap turned it into a powerful bioassay tool for evaluating the orientation of gravid mosquitoes to putative oviposition substrates using olfaction. This study describes a useful tool for investigating olfactory attraction of gravid An. gambiae s.s. and provides additional evidence that gravid mosquitoes of this species are attracted to and can be baited with attractive substrates such as organic infusions over a distance of several metres.
journal_name
Parasit Vectorsjournal_title
Parasites & vectorsauthors
Okal MN,Herrera-Varela M,Ouma P,Torto B,Lindsay SW,Lindh JM,Fillinger Udoi
10.1186/s13071-015-0916-0subject
Has Abstractpub_date
2015-06-03 00:00:00pages
301issn
1756-3305pii
10.1186/s13071-015-0916-0journal_volume
8pub_type
杂志文章abstract:BACKGROUND:Post-mass drug administration (MDA) surveillance during the lymphatic filariasis (LF) elimination program in Sri Lanka, revealed the re-emergence of brugian filariasis after four decades. This study was done with the objectives of investigating the epidemiology and age-specific vulnerability to infection. Su...
journal_title:Parasites & vectors
pub_type: 杂志文章
doi:10.1186/s13071-018-2649-3
更新日期:2018-01-29 00:00:00
abstract:BACKGROUND:Birds harbour an astonishing diversity of haemosporidian parasites. Renewed interest in avian haemosporidians as a model system has placed a greater emphasis on the development of screening protocols to estimate parasite prevalence and diversity. Prevalence estimates are often based on the molecular or blood...
journal_title:Parasites & vectors
pub_type: 杂志文章
doi:10.1186/s13071-017-2066-z
更新日期:2017-03-06 00:00:00
abstract:BACKGROUND:Culicoides biting midges are incriminated as biological vectors of a number of viruses, e.g. bluetongue virus. In order to define vector-free periods/areas and to assess the vectorial role of the various Culicoides species, a comprehensive knowledge on their spatio-temporal occurrence is required. METHODS:B...
journal_title:Parasites & vectors
pub_type: 杂志文章
doi:10.1186/1756-3305-5-246
更新日期:2012-10-31 00:00:00
abstract:BACKGROUND:Schistosomiasis is a neglected tropical disease and drug-repurposing is a useful strategy to fill its exhausted drug development pipeline. The ferrocenyl analogue of chloroquine, ferroquine, is an antimalarial in late-stage drug development. The aim of the present work was to study the antischistosomal activ...
journal_title:Parasites & vectors
pub_type: 杂志文章
doi:10.1186/1756-3305-7-424
更新日期:2014-09-04 00:00:00
abstract:BACKGROUND:Alternative splicing (AS) of mRNA is a vital mechanism for enhancing genomic complexity in eukaryotes. Spliced isoforms of the same gene can have diverse molecular and biological functions and are often differentially expressed across various tissues, times, and conditions. Thus, AS has important implication...
journal_title:Parasites & vectors
pub_type: 杂志文章
doi:10.1186/1756-3305-7-151
更新日期:2014-04-01 00:00:00
abstract:BACKGROUND:Acanthamoebiasis is most often found in patients with immune deficiency, with infections facilitated by the intake of immunosuppressive drugs. The host immune response to Acanthamoeba spp. infection is poorly understood. Thus, in this study, we aimed to examine the course of Acanthamoeba spp. infection takin...
journal_title:Parasites & vectors
pub_type: 杂志文章
doi:10.1186/s13071-018-3108-x
更新日期:2018-09-20 00:00:00
abstract:BACKGROUND:Bioclimatic variables play an integral part in the life-cycle of Ctenocephalides felis, the most common flea found on companion animals. It is essential that we understand the effects of climate on C. felis distribution as fleas are a major veterinary and public health concern. This study investigated the cu...
journal_title:Parasites & vectors
pub_type: 杂志文章
doi:10.1186/s13071-019-3399-6
更新日期:2019-03-22 00:00:00
abstract::Helminth infection may modulate the expression of Toll like receptors (TLR) in dendritic cells (DCs) and modify the responsiveness of DCs to TLR ligands. This may regulate aberrant intestinal inflammation in humans with helminthes and may thus help alleviate inflammation associated with human inflammatory bowel diseas...
journal_title:Parasites & vectors
pub_type: 杂志文章,评审
doi:10.1186/1756-3305-4-186
更新日期:2011-09-27 00:00:00
abstract:BACKGROUND:Elimination of lymphatic filariasis (LF) in Samoa continues to be challenging despite multiple annual mass drug campaigns aimed at stopping transmission by reducing the prevalence and density of microfilaraemia. The persistence of transmission may be partly related to the highly efficient Aedes vectors. The ...
journal_title:Parasites & vectors
pub_type: 杂志文章
doi:10.1186/s13071-015-0886-2
更新日期:2015-05-28 00:00:00
abstract:BACKGROUND:Arthropod-borne diseases are some of the most rapidly spreading diseases. Reducing the vector population is currently the only effective way to reduce case numbers. Central metabolic pathways are potential targets to control vector populations, but have not been well explored to this aim. The information ava...
journal_title:Parasites & vectors
pub_type: 杂志文章
doi:10.1186/s13071-016-1391-y
更新日期:2016-02-25 00:00:00
abstract:BACKGROUND:Schistosoma mansoni cercariae penetrate the skin by releasing excretory/secretory (E/S) products known as 0-3hRP, which are associated with immune modulation through Toll like receptor (TLR) signalling. Furthermore, these secretions contain Sm16, which when given to cells as a recombinant protein inhibits hu...
journal_title:Parasites & vectors
pub_type: 杂志文章
doi:10.1186/s13071-014-0608-1
更新日期:2015-01-06 00:00:00
abstract:BACKGROUND:Multiplicity and genetic diversity of Plasmodium falciparum infection might play a role in determining the clinical outcome of malaria infection and could be a fair reflection of the disease transmission rate. This study investigated the genetic diversity of P. falciparum and multiplicity of infection in rel...
journal_title:Parasites & vectors
pub_type: 杂志文章
doi:10.1186/s13071-016-1641-z
更新日期:2016-06-27 00:00:00
abstract:BACKGROUND:The analysis of large mosquito samples is expensive and time-consuming, delaying the efficient timing of vector control measurements. Processing a fraction of a sample using a subsampling method can significantly reduce the processing effort. However, a comprehensive evaluation of the reliability of differen...
journal_title:Parasites & vectors
pub_type: 杂志文章
doi:10.1186/s13071-019-3606-5
更新日期:2019-07-16 00:00:00
abstract:BACKGROUND:Thelazia callipaeda is a zoonotic nematode that affects the eyes of domestic and wild animals, including dogs, cats and red foxes. This parasitic eye worm is transmitted by Phortica variegata, which is a zoophilic fruit fly spread in Europe. Two wild European rabbits (Oryctolagus cuniculus) found dead in nor...
journal_title:Parasites & vectors
pub_type: 杂志文章
doi:10.1186/s13071-016-1526-1
更新日期:2016-05-10 00:00:00
abstract:BACKGROUND:The genus Marshallagia (Family Haemonchidae, subfamily Ostertagiinae) contains multiple species of nematodes parasitising the abomasum (or duodenum) of ruminants, in particular of Caprinae. Male specimens have been described to be polymorphic with the frequent/major morphotype initially described in the genu...
journal_title:Parasites & vectors
pub_type: 杂志文章
doi:10.1186/s13071-020-04265-1
更新日期:2020-08-12 00:00:00
abstract:BACKGROUND:The Asian tiger mosquito Aedes albopictus is an extremely invasive, globally distributed and medically important vector of various human and veterinary pathogens. In Germany, where this species was recently introduced, its establishment may become modulated by interspecific competition from autochthonous mos...
journal_title:Parasites & vectors
pub_type: 杂志文章
doi:10.1186/s13071-018-2665-3
更新日期:2018-02-02 00:00:00
abstract:BACKGROUND:Routine molecular surveillance for imported drug-resistant malaria parasites to the USA and European Union is an important public health activity. The obtained molecular data are used to help keep chemoprophylaxis and treatment guidelines up to date for persons traveling to malaria endemic countries. Recent ...
journal_title:Parasites & vectors
pub_type: 杂志文章
doi:10.1186/s13071-020-4005-7
更新日期:2020-03-14 00:00:00
abstract:BACKGROUND:Accurate diagnosis of urogenital schistosomiasis is vital for surveillance/control programs. Amplification of schistosome DNA in urine by PCR is sensitive and specific but requires infrastructure, financial resources and skilled personnel, often not available in endemic areas. Recombinase Polymerase Amplific...
journal_title:Parasites & vectors
pub_type: 杂志文章
doi:10.1186/s13071-015-1055-3
更新日期:2015-09-04 00:00:00
abstract:BACKGROUND:Two hemoplasma species, Mycoplasma suis and M. parvum, previously known as Eperythrozoon suis and E. parvum, respectively, have been identified in pigs. Swine hemoplasmosis is a global problem, and M. suis infection results in economic losses to pig producers worldwide. This study investigated the frequency ...
journal_title:Parasites & vectors
pub_type: 杂志文章
doi:10.1186/s13071-019-3638-x
更新日期:2019-07-29 00:00:00
abstract:BACKGROUND:Humans are parasitized by three types of lice: body, head and pubic lice. As their common names imply, each type colonizes a specific region of the body. The body louse is the only recognized disease vector. However, an increasing awareness of head lice as a vector has emerged recently whereas the status of ...
journal_title:Parasites & vectors
pub_type: 杂志文章
doi:10.1186/s13071-020-04036-y
更新日期:2020-04-07 00:00:00
abstract:BACKGROUND:During recent periods, the islands of the Republic of Seychelles experienced many diseases such as dengue, chikungunya, Bancroft's filaria and malaria. Mosquitoes transmit the agents that cause these diseases. Published information on mosquitoes in the Seychelles is notably dispersed in the literature. The m...
journal_title:Parasites & vectors
pub_type: 杂志文章
doi:10.1186/1756-3305-5-207
更新日期:2012-09-21 00:00:00
abstract:BACKGROUND:Cutaneous Leishmaniasis (CL) is endemic in Sudan. It is caused by Leishmania major parasites and transmitted by Phlebotomus papatasi sandflies. Recently, uncommon clinical manifestations of CL have been reported. Moreover, L. donovani parasites that cause Visceral Leishmaniasis (VL) have been isolated from C...
journal_title:Parasites & vectors
pub_type: 杂志文章
doi:10.1186/1756-3305-5-249
更新日期:2012-11-12 00:00:00
abstract:BACKGROUND:Transmission-blocking vaccines (TBVs) have been considered an important strategy for disrupting the malaria transmission cycle, especially for Plasmodium vivax malaria, which undergoes gametocytogenesis earlier during infection. Pvs25 and Pvs28 are transmission-blocking vaccine candidates for P. vivax malari...
journal_title:Parasites & vectors
pub_type: 杂志文章
doi:10.1186/1756-3305-4-224
更新日期:2011-11-28 00:00:00
abstract:BACKGROUND:Biting midges of the genus Culicoides (Diptera: Ceratopogonidae) are biological vectors of internationally important arboviruses. To understand the role of Culicoides in the transmission of these viruses, it is essential to correctly identify the species involved. Within the western Palaearctic region, the m...
journal_title:Parasites & vectors
pub_type: 杂志文章
doi:10.1186/1756-3305-7-223
更新日期:2014-05-14 00:00:00
abstract:BACKGROUND:Zoonotic onchocerciasis is a vector-borne disease, which involves many animal species, including large ungulates, boars, dogs, and sporadically, humans. So far, 39 cases of zoonotic onchocerciasis have been reported worldwide, 30 of which have been found in the last 20 years. Onchocerca nematodes are transmi...
journal_title:Parasites & vectors
pub_type: 杂志文章
doi:10.1186/s13071-020-3925-6
更新日期:2020-02-12 00:00:00
abstract:BACKGROUND:The tick midgut and salivary glands represent the primary organs for pathogen acquisition and transmission, respectively. Specifically, the midgut is the first organ to have contact with pathogens during the blood meal uptake, while salivary glands along with their secretions play a crucial role in pathogen ...
journal_title:Parasites & vectors
pub_type: 杂志文章
doi:10.1186/s13071-019-3418-7
更新日期:2019-04-02 00:00:00
abstract::In the more than 100 years since its discovery, our knowledge of Toxoplasma biology has improved enormously. The evolution of molecular biology, immunology and genomics has had profound influences on our understanding of this ubiquitous bug. However, it could be argued that in science today the adage "seeing is believ...
journal_title:Parasites & vectors
pub_type: 历史文章,杂志文章,评审
doi:10.1186/1756-3305-6-334
更新日期:2013-11-22 00:00:00
abstract:BACKGROUND:The preventive effect of fluralaner spot-on solution against transmission of Babesia canis by Dermacentor reticulatus ticks was evaluated. FINDINGS:Sixteen dogs, tested negative for B. canis by polymerase chain reaction (PCR) and immunofluorescence assay test (IFAT), were allocated to two study groups. On d...
journal_title:Parasites & vectors
pub_type: 杂志文章
doi:10.1186/s13071-016-1481-x
更新日期:2016-05-31 00:00:00
abstract::Taenia solium life cycle includes humans as definitive hosts and pigs as intermediate hosts. One of the measures to stop the life cycle of this parasite is by vaccination of pigs. In experiments performed in pigs with TSOL18 and TSOL45-1A, two recombinant T. solium proteins, 99.5% and 97.0% protection was induced, res...
journal_title:Parasites & vectors
pub_type: 杂志文章
doi:10.1186/1756-3305-4-3
更新日期:2011-01-06 00:00:00
abstract:BACKGROUND:Canine monocytic ehrlichiosis (CME) is a tick-borne disease with a global distribution, caused by Ehrlichia canis. The inflammatory response to E. canis infection includes changes in certain acute phase proteins (APP) and in biomarkers of the oxidative status. APP responses are considered part of the innate ...
journal_title:Parasites & vectors
pub_type: 杂志文章
doi:10.1186/s13071-015-0798-1
更新日期:2015-03-23 00:00:00