Where the wind comes sweeping down the plain': Using a bibliometric study to identify trends and knowledge gaps of vector-borne disease research in Oklahoma

Research on vector-borne diseases on the Great Plains has a rich and dynamic publication history. The aim of this study was to assess the publication trends in Oklahoma between 1965 and 2015 with a view to identifying knowledge gaps on which to focus future research initiatives. Using Web of Science (Thompson Reuters) and Pubmed (National Center for Biotechnology Information) in EndNote, a total of 747 publications was identified that involved Oklahoma-based researchers, samples, or data obtained since 1965. Eighty-two percent (n = 615) of the published studies focused on ticks and tick-borne diseases. Most of the studies involving specific tick species (n = 282) focused on the lone star tick, Amblyomma americanum (L.), (51.1%), with anaplasmosis the primary disease system studied. Until 1989, most vector-borne disease research focused on ecology and control. The trend shifted almost complementarily since the 1990s with as much as 80% of research focused on clinical- or laboratory-based studies. This study found a rich diversity of research on vector-borne diseases in Oklahoma during the past 5 decades, most of which need greater attention. At least 30 universities in Oklahoma that provide 2-year associate degrees to underserved populations provide excellent possibilities from which to address important questions regarding vector-borne diseases.Peer reviewedEntomology and Plant Patholog

Biomedically-focused research productivity by Namibian authors and institutions 1995-2010

Publications are the result of individual scientists or 'webs' of collaborators who present their scientific observations and share them with the scientific community. A study of authors and institutions who have published provides way to assess a country's research environment. Using PubMed and ISI Web of Science, this study identified Namibian authors and institutions which published biomedically-focused studies between 1995 and 2010. Results consisted of 150 different biomedically-oriented publications by a total of 190 different authors from 44 different institutions. 89% of the articles by Namibian authors were the results of collaboration, either foreign or Namibian-based. 47% of the papers were 1st authored and 11% were single authored by Namibian-based authors. The majority of Namibian authors (72%) only produced one article while 28% produced 2 or more papers. Further analysis indicated that there has been a negative trend in the number of publications since 1998 which contrasts with the increasing number of institutions which have published at least one article during that period. In total, these results indicate that the biomedical science environment in Namibia has potential to develop and expand. However, it needs support from a national biomedical research strategy based on Namibian-informed research priorities, investment in potential authors and institutions and empowered tertiary institutions taking the lead to equip and build capacity in local collaborators in order to reach its true potential.Peer reviewedEntomology and Plant Patholog

Vector-borne diseases of small companion animals in Namibia: Literature review, knowledge gaps and opportunity for a One Health approach

Namibia has a rich history in veterinary health but little is known about the vector-borne diseases that affect companion dogs and cats. The aim of this review is to summarise the existing published and available unpublished literature, put it into a wider geographical context, and explore some significant knowledge gaps. To date, only two filarial pathogens (Dirofilaria repens and Acanthocheilonema dracunculoides) and three tick-borne pathogens (Babesia canis vogeli, Hepatozoon canis and Ehrlichia canis) have been reported. Most studies have focused solely on dogs and cats in the urban Windhoek and surrounding areas, with almost nothing reported in rural farming areas, in either the populous northern regions or the low-income urban areas where animal owners have limited access to veterinary services. With the development of several biomedical training programmes in the country, there is now an excellent opportunity to address zoonotic vector-borne diseases through a One Health approach so as to assess the risks to small companion animals as well as diseases of public health importance.Peer reviewedEntomology and Plant Patholog

AIDS-related knowledge and sexual behaviour among married and previously married persons in rural central Mozambique

HIV prevalence in central Mozambique is the highest in the country with high urban rates impacting on the rural areas. To identify potential factors influencing the spread of HIV in three sparsely populated districts in southern Sofala province, 847 married and previously married persons were surveyed for their knowledge, practices and beliefs regarding HIV/AIDS and STIs. 21.9% and 6.5% of males and females, respectively, were engaged in casual sexual partnerships in the past year. Being male, married, educated, and having genital discharge and ulcers in the last year were significantly associated with risky sexual activity. Risky behaviour was significantly associated with being Catholic or Protestant when compared with those from Zionist churches. Knowledge of ABC prevention strategies and condom usage was significantly associated with being male, married, having an STI in the past year, and being educated, particularly at the secondary level (Grade 8+). Attitudes and behaviour were influenced by cultural and religious involvement, as well as sex and marital status. It is imperative that prevention strategies take into account the cultural, economic and religious conditions present in rural African settings to create HIV prevention programmes that are culturally relevant and acceptable to the participants.Peer reviewedEntomology and Plant Patholog

First report of adult Amblyomma longirostre (Acari: Ixodidae) in Oklahoma

Peer reviewedEntomology and Plant Patholog

Influence of religious affiliation and education on HIV knowledge and HIV-related sexual behaviors among unmarried youth in rural central Mozambique

The interactions between religious affiliation, education, HIV knowledge, and HIV-related sexual behaviors among African church youth are poorly understood. In this socio-demographic study, 522 unmarried youth 12-28 years old in rural central Mozambique were surveyed with a structured questionnaire. Using binary logistic regression analysis, we used religious affiliation and education to measure influence on (1) HIV transmission and prevention knowledge and attitudes and (2) HIV-related sexual behaviors among youth. Religiously affiliated males were more likely than non-religious males to know when a condom should be used, respond correctly to HIV transmission questions and respond with less stigma to HIV-related scenarios. Increased levels of education among males corresponded significantly to increased knowledge of condom usage and HIV prevention strategies and less likelihood to respond with stigma. Only education levels influenced young female responses. Religious affiliation and education had minimal effects on sexual activity, condom usage, and multiple partnerships. African Independent Church/Zionist males were 1.6 times more likely to be sexually inexperienced than non-religious males but were also significantly less likely to use condoms (0.23, p=0.024). Non-religious youth were most likely to have visited sex workers and did not use condoms. These results suggest that religious affiliation, possibly as the result of educational opportunities afforded by religious-affiliated schools, is contributing to increased HIV transmission and prevention knowledge among youth in rural Central Mozambique but not influencing HIV-related sexual behavior. The need exists to strengthen the capacity of religious congregations to teach about HIV/AIDS and target non-religious youth with HIV transmission and prevention information.Peer reviewedEntomology and Plant Patholog

Effects of woody plant encroachment by eastern redcedar on mosquito communities in Oklahoma

Woody plant encroachment into grasslands is occurring worldwide, affecting ecosystems in ways that likely influence mosquito-borne disease transmission. In the U.S. Great Plains, encroachment by eastern redcedar (Juniperus virginiana) (ERC) may be expanding conducive habitat for mosquitoes and their hosts, but few studies have evaluated associations between ERC encroachment and West Nile virus (WNV). To test the hypotheses that mosquito abundance and WNV-infected mosquitoes increase with increasing ERC cover, we collected mosquitoes in 32 sites in Oklahoma reflecting various ERC encroachment stages. We found support for our first hypothesis, as mean abundance of Aedes albopictus increased significantly with ERC cover. However, Psorophora columbiae and Anopheles quadrimaculatus abundance decreased with increasing ERC. There was no significant association with ERC for other mosquito species. We could not test our second hypothesis due to low WNV prevalence, but the only detected WNV-infected pool of mosquitoes (Cx. tarsalis) was collected in ERC. Our results suggest ERC encroachment increases abundance of at least one medically important mosquito species, but further research is needed to clarify how encroachment affects ecology of the entire WNV disease system through changes to vector and host communities, vector-host interactions, and thus disease transmission and prevalence. Understanding relationships between woody plant encroachment and the nidus of infection for mosquito-borne diseases will be crucial for targeting public health efforts, including land management activities that limit and/or eradicate woody plant encroachment, particularly in areas with high levels of disease risk.Natural Resource Ecology and ManagementEntomology and Plant Patholog

Detection of Bartonella henselae and Rickettsia felis in fleas from client-owned pets in Oklahoma

Bartonella sp. and Rickettsia sp. DNA were detected in cat fleas, Ctenocephalides felis (Bouche), collected from urban, client-owned cats (Felis catus L.) and dogs (Canis lupus familiaris L.) at Tulsa, OK, during 2017. Bartonella henselae (Regnery et al. 1992) was detected in four of six fleas (67%) from one cat, while Rickettsia felis (Bouyer et al. 2001) was detected in eight fleas from five animals.Peer reviewedEntomology and Plant Patholog

Common ticks of Oklahoma and tick-borne diseases

The Oklahoma Cooperative Extension Service periodically issues revisions to its publications. The most current edition is made available. For access to an earlier edition, if available for this title, please contact the Oklahoma State University Library Archives by email at [email protected] or by phone at 405-744-6311

Updated distribution of Aedes albopictus in Oklahoma, and implications in arbovirus transmission

A series of statewide surveys were conducted in Oklahoma in the summers between 1991 and 2004 to identify the distribution of Aedes albopictus. Adult mosquitoes were identified in 63 counties, bringing the currently known distribution of Ae. albopictus in the state to 69 of 77 counties. The widespread presence of Ae. albopictus in Oklahoma has important current and future public and veterinary health implications for surveillance and control efforts.Peer reviewedEntomology and Plant Patholog