scholarly journals Availability and Breeding Preferences of Aedes Mosquitoes in Fifteen High Altitude Localities, Maekel Region, Eritrea: A Cross-sectional Study

2020 ◽  
Author(s):  
Kibreab Tesfamicael Haile ◽  
Meron Berhe Tsegai ◽  
Feven Negusse Sielu ◽  
Liya Tekle Weldu ◽  
Tesfit Brhane Nesserab ◽  
...  

Abstract Background: Even-though dengue fever suspicion started to surface in the high altitude localities of Zoba Maekel, presence of the vector has not been studied. Therefore, the study aimed to identify the availability of Aedes mosquitoes, their breeding preferences, and level of infestation in fifteen localities of this region.Methods: Inspection of all water holding containers, in 740 systematically selected households of fifteen localities, was done identifying immature stages of Aedes mosquitoes. All immatures were then, classified, reared and identified using taxonomic keys. Breeding preferences ratio and infestation indices were calculated.Results: In this study Aedes Aegypti mosquito was found in four localities, whereas mosquito of other Aedes specie was identified in twelve localities. Out of all the households inspected 51 were positive for Aedes immature. All indoor containers studied were free of Aedes infestation, whilst 53 of 874 outdoor containers were infested by Aedes larvae and pupae. In this study, discarded tyres were found to have the highest breeding preference ratio (2.11) and pupal productivity (40%). Plastic barrels had the highest positivity (42%) and were the second most productive type of container (28%). The Household, Container and Breteau Indices of more than half of the localities were higher than the high transmission risk thresholds.Conclusion: The study indicated possibilities of local dengue fever transmission in the studied areas. Hence, in depth confirmative studies should be considered and strategic preventive actions should be commenced in regard to the most preferred sites such as discarded tyres.

2020 ◽  
Vol 4 (6) ◽  
Author(s):  
A.B. Umar ◽  
A.H. Dankaka ◽  
M. Manjur Shah

The study is carried out to standardize larval indices namely House Index, Container Index and Breteau Index and also to identify the major breeding sources of mosquitoes in the residential environment in and around the Gwale Local government area of  Kano, Nigeria. A cross-sectional study by selecting 50 houses randomly from the 6 wards of Municipality was employed. Every water holding container indoors and outdoors were counted and searched for larval presence and noted on a pretested format. In this study, 300 houses were surveyed in 21 days out of which 94.33% (283 houses) were found to have potential sources for mosquito breeding. All the entomological indices were found to be above the critical level. House Index = 28.67%; Container Index = 12.14%; Breteau Index = 64.00% showing high chances for outbreaks of mosquito borne diseases. The area is prone to mosquito borne disease like malaria and therefore warrants interventions from the competent.


Author(s):  
Marinalva Ribeiro Pardinho Durães ◽  
Áurea Tamami Minagawa Toriyama ◽  
Luiz Faustino dos Santos Maia

O objetivo deste estudo foi avaliar o conhecimento dos pais sobre como proceder diante de acidentes domésticos. Percebermos a necessidade de ações preventivas junto à criança, família e comunidade no sentido de alertar para os riscos e para a necessidade de adotar comportamentos seguros em relação ao ambiente doméstico e a fase de desenvolvimento da criança. Trata-se de um estudo descritivo, de corte transversal, com abordagem quantitativa acerca da avaliação do conhecimento de 50 pais, sobre acidentes domésticos. Quanto ao gênero dos participantes teve maior influencia o sexo feminino (82%). A idade variou entre 18 e 56 anos. O ensino superior teve maior relevância entre os entrevistados com 42%. Ao atender uma criança com acidente, 58% disse que sua primeira ação é pedir socorro. Diante desses resultados, comprovaram-se o conhecimento dos pais frente à prevenção dos acidentes domésticos, mas requer maiores informações de alerta para prevenir os acidentes em casa.Descritores: Acidentes Domésticos, Prevenção de Acidentes, Criança. The parents’ knowledge about how to proceed in the face of domestic accidentsAbstract: The objective of this study was to evaluate the knowledge of parents on how to proceed in the face of domestic accidents. Realize the need for preventive actions by the child, family and community to alert to the risks and the need to adopt safe behaviors in relation to the domestic environment and the child's stage of development. It is a descriptive, cross-sectional study with quantitative approach about the knowledge assessment of 50 parents, on domestic accidents. As for the gender of the participants had greater influences the female (82%). The age varied between 18 and 56 years. Higher education had greater relevance between respondents with 42%. To meet a child with accident, 58% said that their first action is to ask for help. On those results, proved himself the knowledge of parents vis-à-vis the prevention of household accidents, but requires more information from alert to prevent accidents at home.Descriptors: Sickle Cell Anemia, Nursing, Nutritional Support. El conocimiento de los padres sobre cómo proceder frente a accidentes domésticosResumen: El objetivo de este estudio fue evaluar el conocimiento de los padres sobre cómo proceder frente a accidentes domésticos. Conscientes de la necesidad de acciones preventivas por el niño, la familia y la comunidad para alertar a los riesgos y la necesidad de adoptar conductas seguras en relación con el entorno doméstico y etapa de desarrollo de los niños. Es un estudio descriptivo, transversal con enfoque cuantitativo sobre la evaluación del conocimiento de los 50 padres, sobre accidentes domésticos. En cuanto a género de los participantes tenía mayor influencia la hembra (82%). La edad varió entre 18 y 56 años. Educación superior tuvo mayor relevancia entre los encuestados con 42%. Para cumplir con un niño con accidente, 58% dijo que su primera acción es pedir ayuda. En esos resultados, demostrados el conocimiento de los padres respecto a la prevención de accidentes domésticos, sino que se requiere más información de alerta para prevenir accidentes en el hogar.Descriptores: Accidentes Domésticos, Prevención, de Accidentes, Niño.


PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e12149
Author(s):  
Charles Huamaní ◽  
Lucio Velásquez ◽  
Sonia Montes ◽  
Ana Mayanga-Herrera ◽  
Antonio Bernabé-Ortiz

Background There are several ecological studies, but few studies of the prevalence of SARS-COV-2 at high altitude. We aimed to estimate the population-based seroprevalence of SARS-COV-2 in three settings of Cusco at the end of the first wave among adults. Methods A population-based survey was conducted in September 2020, in three settings in the region of Cusco: (1) Cusco city at 3,300 meters above the sea level (m.a.s.l.), (2) the periphery of Cusco (Santiago, San Jerónimo, San Sebastián, and Wanchaq) at 3,300 m.a.s.l., and (3) Quillabamba city, located at 1,050 m.a.s.l. People aged ≥ 18 years within a family unit were included. The diagnosis of SARS-CoV-2 infection was based on identifying anti- SARS-CoV-2 total antibodies (IgM and IgG) in serum using the Elecsys Anti-SARS-CoV-2 chemiluminescence test. Results We enrolled 1924 participants from 712 families. Of the total, 637 participants were anti-SARS-CoV-2 seropositive. Seroprevalence was 38.8% (95% CI [33.4%–44.9%]) in Cusco city, 34.9% (95% CI [30.4%–40.1%]) in the periphery of Cusco, and 20.3% (95% CI [16.2%–25.6%]) in Quillabamba. In 141 families (19.8%; 95% CI [17.0%–22.8%]) the whole members were positive to the test. Living with more than three persons in the same house, a positive COVID-19 case at home, and a member who died in the last five months were factors associated with SARS-COV-2 seropositivity. Dysgeusia/dysosmia was the symptom most associated with seropositivity (aPR = 2.74, 95% CI [2.41–3.12]); whereas always wearing a face shield (aPR = 0. 73; 95% CI [0.60–0.89]) or a facial mask (aPR = 0.76, 95% CI [0.63–0. 92) reduced that probability. Conclusions A great proportion of Cusco’s city inhabitants presented anti-SARS-CoV-2 antibodies at the end of the first wave, with significant differences between settings. Wearing masks and face shields were associated with lower rate of seropositivity; however, efforts must be made to sustain them over time since there is still a high proportion of susceptible people.


2005 ◽  
Vol 17 (6) ◽  
pp. 704-717 ◽  
Author(s):  
Luis Huicho ◽  
Manuel Muro ◽  
Alberto Pacheco ◽  
Jaime Silva ◽  
Edgar Gloria ◽  
...  

2019 ◽  
Vol 6 (17) ◽  
pp. 1300-1305
Author(s):  
Mansi Singh ◽  
Ajay Kumar ◽  
Sanjay Mehrotra ◽  
Virendra Atam ◽  
Ravi Mishra ◽  
...  

Author(s):  
Eslam Moradi-Asl ◽  
Hassan Vatandoost ◽  
Davod Adham ◽  
Daryosh Emdadi ◽  
Hassan Moosa-Kazemi

Background: To investigate the diversity of the genus Aedes present in the natural areas of Ardabil Province, north-west of Iran. Methods: This cross-sectional study was carried out from Apr to Oct 2016 in North-western of Iran. Thirty-three areas of 10 cities which are border areas were selected randomly. The larvae were collected 2 times in each month during the seasonal activities of mosquitoes and the larvae were identified morphologically according to the ap­propriate identification keys.  Results: Overall, 694 larvae were collected from four counties, from which only 7.2% were Aedes larvae. Three species of Aedes were identified which include Ae. caspius, Ae. vexans and Ae. flavescens. Aedes flavescens is reported from Ardabil Province for the first time. Conclusion: Aedes species were a high density in borderline of Iran and Azerbaijan. Therefore, the north parts of Ardabil Province are a suitable habitat for Aedes species mosquitoes. Care should be taken for vector control in the case of occurrence of any arboviruses transmitted by Aedes mosquitoes.


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