scholarly journals DENSITY OF MOSQUITOES SPECIES AND EFFECT OF SOME CLIMATIC PARAMETER IN AMINU KANO TEACHING HOSPITAL, KANO, NIGERIA

2020 ◽  
Vol 4 (2) ◽  
pp. 414-419
Author(s):  
Abdulrazak Muhammad Idris ◽  
A. Haruna ◽  
A. M. Yayo ◽  
Y. Mohammed ◽  
H. U. Takalmawa ◽  
...  
Keyword(s):  
Relative Humidity ◽  
Mosquito Species ◽  
Light Trap ◽  
Periodic Variation ◽  
Emerging Infections ◽  
Climatic Parameters ◽  
Climatic Parameter ◽  
Control Programs ◽  
Anopheles Mosquitoes ◽  
The Relationship

In Nigeria mosquito-borne diseases particularly malaria and some emerging and re-emerging infections such as Zika, dengue fever, yellow fever, constitute a big threat to public health. However, there is a paucity of information on the species of mosquito in Kano City Northern Nigeria. Despite mosquitoes control programs that had taken place in this state and its environment, mosquitoes remain a problem in the state and there is little information on the relationship between mosquito species and the effect of some climatic parameters on the mosquitoes distribution in the study area. The mosquito species were collected using the CDC light trap method and climatic parameters such as temperature and relative humidity were recorded at every one hour of the experiments. A total of 26,652 mosquitoes were collected from January to July 2018. Out of the 26,652, 17444 (65.46%) were Culex and 9208 (34.54%) were Anopheles mosquitoes. Culex species were observed to have its peak at 10:00 - 11:00 pm (5435) while Anopheles mosquito species were observed to attain their first peak at 3:00 – 4:00 am (3416). High collections of mosquitoes were obtained at optimum temperature and relative humidity. This study provided information on the mosquito species diversity in respect to seasonal and periodic variation at AKTH and the effect of some climatic parameters. 

scholarly journals Monitoring and Analyzing of the Relationship between Climatic Elements and Skin Cancer in the Years 2012-2014

2021 ◽  
Author(s):  
Mostafa Dastorani ◽  
Vahid Safarianzengir ◽  
Bromand Salahi
Keyword(s):  
Skin Cancer ◽  
Linear Interpolation ◽  
Statistical Correlation ◽  
Absolute Temperature ◽  
Maximum Temperature ◽  
Climatic Parameters ◽  
Climatic Parameter ◽  
Correlation Relationship ◽  
Climate Parameter ◽  
The Relationship

Introduction: The present study investigated one of these types of disease (skin cancer) and its relationship with climatic parameters. The aim of this study was to investigate the relationship between climate change and skin cancer in Ardabil province. Materials and Methods: This descriptive correlational study was conducted to investigate the effect of six climatic parameters (frost, sunny hours, minimum mean humidity, maximum absolute temperature, minimum absolute temperature, and mean temperature) on skin cancer in Ardabil province in a 3-year statistical period (2012-2014). The data were analyzed using the Spearman correlation relationship in SPSS version 24 software, also Minitab version 16 software was used for linear interpolation. Results: According to the findings, the highest correlation (more than 95%) of skin cancer in three cities of Parsabad, Khalkhal, and Ardabil with the climatic parameter was related to minimum absolute temperature. However, in Khalkhal station in three years of study, sunny hours had the highest correlation and the lowest correlation was related to glacial climate parameter in all four cities. It can be said that the factors of sunny hours and maximum temperature have an effect on the incidence of skin cancer, and the minimum absolute temperature increases the exacerbation of this type of disease. Conclusion: According to the results of statistical correlation and the effects of climatic parameters on skin cancer, it can be concluded that climate parameters are one of the effective factors in skin cancer.

scholarly journals Anopheles Mosquito Species in Betung Bedarah, Tebo Regency, Jambi Province

2021 ◽  
Vol 8 (1) ◽  
pp. 35
Author(s):  
Maas M Maloha ◽  
Kanti Ratnaningrum
Keyword(s):  
Mosquito Species ◽  
Light Trap ◽  
Anopheles Mosquito ◽  
Breeding Ground ◽  
Tropical Country ◽  
Anopheles Mosquitoes ◽  
Human Landing ◽  
Anopheles Barbirostris ◽  
Collection Methods ◽  
Anopheles Vagus

Background: Indonesia is a tropical country which is a good breeding ground for mosquitoes. Mosquitoes are still one of arthropods that contribute to occurrence of infectious diseases, including malaria, which is a disease that is a health problem in Jambi Province.Objective: To determine types of Anopheles mosquito spesies in Betung Bedarah Tebo, Jambi.Methods: A discriptif study to identifed distribution of mosquitoes in Betung Bedarah, Tebo Regency used human landing collection and resting collection methods. Collection of mosquito samples used an aspirator and light trap. Analysis used tabulation.Results: Of the 64 mosquitoes collected, 25% were Anopheles mosquitoes which consisted of 43.7% Anopheles barbirostris, 25% Anopheles vagus, 18.7% Anopheles aconitus, and 12.6% Anopheles kochi.Conclusion: Most of mosquito species collected at Betung Berdarah Tebo were Anopheles barbirostris.

scholarly journals COMPARISON OF THE CDC LIGHT TRAP AND THE DYNATRAP® DT2000 FOR COLLECTION OF MOSQUITOES IN SEMI-FIELD AND FIELD SETTINGS

2021 ◽  
Vol 67 (1) ◽  
pp. 69-72
Author(s):  
Nicholas Acevedo
Keyword(s):  
Mosquito Control ◽  
Uv Light ◽  
Mosquito Species ◽  
Functional Limitations ◽  
Light Trap ◽  
Light Sources ◽  
Light Traps ◽  
Original Design ◽  
Cdc Light Trap ◽  
Control Programs

The CDC light trap has been the standard used by mosquito control programs to conduct mosquito and arbovirus surveillance. For the last two decades, this trap has been used with little to no modifications to its original design. Recently, new traps that utilize different light sources, modified designs, and attractants have been developed and evaluated against the CDC light trap. A semi-field and field comparison of the Dynatrap® (Model DT2000) against the CDC light trap was conducted at Anastasia Mosquito Control District. The DT2000 varies from the CDC light trap with a UV light, trapdoor/fan mechanism, and Atrakta lure which is a combination of lactic acid, ammonia, and hexanoic acid. Overall, the DT2000 collected 56% (327/600) of the Ae. aegypti released in the semifield cage, compared to 18.5% (111/600) collected by the CDC light traps. These findings suggest that the DT2000 outperformed the CDC light trap in collecting Ae. aegypti. In the field, the DT2000 collected nine target mosquito species while the CDC light trap collected four target species. The DT2000 averaged 109 ± 97.46 mosquitoes and the CDC light trap averaged 8 ± 4.64 mosquitoes. The DT2000 presented functional limitations in the field as an electrical outlet was required. Study findings suggest that where an electrical outlet is available, the DT2000 may be an alternative to the CDC light trap for mosquito surveillance.

scholarly journals ANALISIS KEPADATAN NYAMUK MENGGUNAKAN LIGHT TRAP PADA KEJADIAN MALARIA

2018 ◽  
Vol 10 (2) ◽  
pp. 102-110
Author(s):  
Hasan Husin
Keyword(s):  
Random Sampling ◽  
Malaria Incidence ◽  
Health Centre ◽  
Light Trap ◽  
Rubber Plantation ◽  
Study Objective ◽  
Anopheles Mosquitoes ◽  
To Come ◽  
The Relationship ◽  
Breeding Place

Light Trap is a mosquito catcher by using light to trap mosquito into a research container. The study objective was to find out the relationship between the density of anopheles mosquitoes with malaria incidence in Taba Lagan Village, Central Bengkulu. This research is quasi-experiment with quantitative approach. The population of this study was all of mosquitos breeding place data and all of patients data who got treatment at community health centre of Tabalagan. Samples of the study were selected by using proportional random sampling. The results showed that the density of mosquitoes about 127 in cowshed which had some characteristics such as bigger size than another mosquito and they used to come out about 06.00 to 10.00 PM. There were 96 medium-sized mosquitoes at rubber plantation which had activity around 05.00 AM. While there were 38 small-sized mosquitoes which are living around cluster residents environment and usually bit human about 06.00 to 09.00 PM. In concluding, the largest number of anopheles mosquitoes was in cowshed (0.118%) with malaria cases of 6 people and who are living about 10 to 20 meters nearby cowshed.

scholarly journals Identification of mosquito species and determination of population density in the Taif governorate, Saudi Arabia

2021 ◽  
Vol 53 (1) ◽  
Author(s):  
T.S. Alghamdi ◽  
M. Al Zahrani ◽  
F.N. Gharsan ◽  
K.M. Al Ghamdi ◽  
J.A. Mahyoub
Keyword(s):  
Black Hole ◽  
Saudi Arabia ◽  
Environmental Temperature ◽  
Mosquito Species ◽  
Light Trap ◽  
Adult Mosquito ◽  
Primary Method ◽  
Control Programs ◽  
Medical Importance

The surveillance of mosquitoes is the primary method for protecting humans from the spread of dangerous diseases such as malaria and dengue fever transmitted by certain mosquito species. The present study aimed to survey and identify mosquito species in the Taif governorate to determine their medical importance and monitor their distribution across seasons. A black hole light trap was used to collect adult mosquitoes, with four readings per month over an entire year recorded. A total of 3796 adult mosquitoes were collected, and 12 species were identified. All species belonged to the following genera: Culex, Aedes, Anopheles, Culiseta, and Lutzia; however, mosquito genera of medical importance (i.e., Culex, Aedes, and Anopheles) were examined in the present study. Adult mosquito species occurred throughout the entire year, with peaks of density and activity during summer and autumn (24-30°C), confirming that environmental temperature plays a key role in mosquito existence and distribution. This study might provide evidence regarding the spread of mosquitoes and creates a database of the mosquito species in the Taif governorate, which would assist in pest control programs.

EL NINO RELATED CLIMATE AND DENGUE FEVER CASES IN JEDDAH, SAUDI ARABIA

2019 ◽  
Vol 25 (1) ◽  
Author(s):  
MASROOR ALI KHAN ◽  
KHALID AL GHAMDI ◽  
JAZEM A. MEHYOUB ◽  
RAKHSHAN KHAN
Keyword(s):  
Relative Humidity ◽  
Dengue Fever ◽  
El Niño ◽  
Significant Relationship ◽  
El Nino ◽  
Climate Data ◽  
Light Traps ◽  
Mosquito Abundance ◽  
Dengue Transmission ◽  
The Relationship

The focus of this study is to find the relationship between El Nino and dengue fever cases in the study area.Mosquito density was recorded with the help of light traps and through aspirators collection. Climate data were obtained from National Meteorology and Environment centre. (Year wise El Nino and La Nina data are according to NOAA & Golden Gate Weather Services). Statistical methods were used to establish the correlation coefficient between different factors. A high significant relationship was observed between Relative Humidity and Dengue fever cases, but Aedes abundance had no significant relationship with either Relative humidity and Temperature. Our conclusion is that the El Nino does not affect the dengue transmission and Aedes mosquito abundance in this region, which is supported by earlier works.

scholarly journals An Efficient Alternative to the CDC Gravid Trap for Southern House Mosquito (Diptera: Culicidae) Surveillance

2020 ◽  
Author(s):  
Timothy D McNamara ◽  
Thomas A O’Shea-Wheller ◽  
Nicholas DeLisi ◽  
Emily Dugas ◽  
Kevin A Caillouet ◽  
...  
Keyword(s):  
United States ◽  
Mosquito Species ◽  
Red Light ◽  
Light Trap ◽  
The United States ◽  
Light Traps ◽  
Efficient Alternative ◽  
Gravid Trap ◽  
Trapping Trials

Abstract West Nile virus (WNV) is the most prevalent arbovirus found throughout the United States. Surveillance of surface breeding Culex vectors involved in WNV transmission is primarily conducted using CDC Gravid traps. However, anecdotal claims from mosquito abatement districts in Louisiana assert that other trap types may be more suited to WNV surveillance. To test the validity of these assertions, we conducted a series of trapping trials and WNV surveillance over 3 yr to compare the efficacy of multiple trap types. First, we compared the CDC Gravid trap, CO2-baited New Standard Miniature Blacklight traps, and CO2-baited CDC light traps with either an incandescent light, a red light, or no light. We found that the CDC Gravid trap and CO2-baited no-light CDC Light trap collected the most mosquitoes. Second, we conducted additional, long-term trapping and WNV surveillance to compare these two trap types. We found that CO2-baited no-light CDC traps collected more of the local WNV vector, Culex quinquefasciatus (Say, Diptera, Culicidae), and detected WNV with greater sensitivity. Finally, we conducted trapping to compare the physiological states of Cx. quinquefasciatus and diversity of collected mosquitoes. CO2-baited no-light CDC light traps collected more unfed Cx. quinquefasciatus while Gravid traps collected more blooded Cx. quinquefasciatus; both traps collected the same number of gravid Cx. quinquefasciatus. Additionally, we found that CO2-baited no-light CDC light traps collected a larger diversity of mosquito species than Gravid traps.

scholarly journals Mosquito Control Priorities in Florida—Survey Results from Florida Mosquito Control Districts

Pathogens ◽  
2021 ◽  
Vol 10 (8) ◽  
pp. 947
Author(s):  
Rishi Kondapaneni ◽  
Ashley N. Malcolm ◽  
Brian M. Vazquez ◽  
Eric Zeng ◽  
Tse-Yu Chen ◽  
...  
Keyword(s):  
State Government ◽  
Mosquito Control ◽  
Control Strategies ◽  
Mosquito Species ◽  
Research Priorities ◽  
Current Control ◽  
Control Programs ◽  
Common Control ◽  
Surveillance Programs ◽  
Research Questions

Florida lies within a subtropical region where the climate allows diverse mosquito species including invasive species to thrive year-round. As of 2021, there are currently 66 state-approved Florida Mosquito Control Districts, which are major stakeholders for Florida public universities engaged in mosquito research. Florida is one of the few states with extensive organized mosquito control programs. The Florida State Government and Florida Mosquito Control Districts have long histories of collaboration with research institutions. During fall 2020, we carried out a survey to collect baseline data on the current control priorities from Florida Mosquito Control Districts relating to (1) priority control species, (2) common adult and larval control methods, and (3) major research questions to address that will improve their control and surveillance programs. The survey data showed that a total of 17 distinct mosquito species were considered to be priority control targets, with many of these species being understudied. The most common control approaches included truck-mounted ultra-low-volume adulticiding and biopesticide-based larviciding. The districts held interest in diverse research questions, with many prioritizing studies on basic science questions to help develop evidence-based control strategies. Our data highlight the fact that mosquito control approaches and priorities differ greatly between districts and provide an important point of comparison for other regions investing in mosquito control, particularly those with similar ecological settings, and great diversity of potential mosquito vectors, such as in Florida. Our findings highlight a need for greater alignment of research priorities between mosquito control and mosquito research. In particular, we note a need to prioritize filling knowledge gaps relating to understudied mosquito species that have been implicated in arbovirus transmission.

scholarly journals Spatiotemporal Variation of the Burned Area and Its Relationship with Climatic Factors in Central Kazakhstan

2021 ◽  
Vol 13 (2) ◽  
pp. 313
Author(s):  
Yongfang Xu ◽  
Zhaohui Lin ◽  
Chenglai Wu
Keyword(s):  
Soil Moisture ◽  
Relative Humidity ◽  
Central Asia ◽  
Climatic Factors ◽  
Spatiotemporal Variation ◽  
Lower Atmosphere ◽  
Burned Area ◽  
Circulation Index ◽  
Precipitation Anomalies ◽  
The Relationship

Central Asia is prone to wildfires, but the relationship between wildfires and climatic factors in this area is still not clear. In this study, the spatiotemporal variation in wildfire activities across Central Asia during 1997–2016 in terms of the burned area (BA) was investigated with Global Fire Emission Database version 4s (GFED4s). The relationship between BA and climatic factors in the region was also analyzed. The results reveal that more than 90% of the BA across Central Asia is located in Kazakhstan. The peak BA occurs from June to September, and remarkable interannual variation in wildfire activities occurs in western central Kazakhstan (WCKZ). At the interannual scale, the BA is negatively correlated with precipitation (correlation coefficient r = −0.66), soil moisture (r = −0.68), and relative humidity (r = −0.65), while it is positively correlated with the frequency of hot days (r = 0.37) during the burning season (from June to September). Composite analysis suggests that the years in which the BA is higher are generally associated with positive geopotential height anomalies at 500 hPa over the WCKZ region, which lead to the strengthening of the downdraft at 500 hPa and the weakening of westerlies at 850 hPa over the region. The weakened westerlies suppress the transport of water vapor from the Atlantic Ocean to the WCKZ region, resulting in decreased precipitation, soil moisture, and relative humidity in the lower atmosphere over the WCKZ region; these conditions promote an increase in BA throughout the region. Moreover, the westerly circulation index is positively correlated (r = 0.53) with precipitation anomalies and negatively correlated (r = −0.37) with BA anomalies in the WCKZ region during the burning season, which further underscores that wildfires associated with atmospheric circulation systems are becoming an increasingly important component of the relationship between climate and wildfire.

The Effect of Climate Change on the Health of Aged People in Ibadan, Nigeria

2020 ◽  
Vol 2 (2) ◽  
Author(s):  
O. J. Kehinde ◽  
A. T. Adeboyejo
Keyword(s):  
Climate Change ◽  
Climate Change Impacts ◽  
Maximum Temperature ◽  
Climatic Parameters ◽  
Data Set ◽  
Aged People ◽  
Improvement Programs ◽  
The Relationship ◽  
Component Scores ◽  
Ibadan Nigeria

Susceptibility to ill health among aged people had been linked with climate change impacts in rapidly urbanising cities. Therefore, this study evaluates to the vulnerability of aged people to the health impacts of climate change in Ibadan, Nigeria. Data on clinically diagnosed climate related diseases (CRDs) (2000 – 2014) among aged people (>50 years) and temperature and rainfall parameters (1970 – 2007) in Ibadan were obtained and projected to year 2050. Also, the relationship between the climatic parameters and incidence of the five most prevalent CRDs were analysed using multiple regression. The increasing trend of mean maximum temperature (r = 0.47) and rainfall (r = 0.15) is associated with incidences of hypertension (34.4%), respiratory diseases (21.2%) and diarrhoea (14.3%) among aged people (> 60 years), mostly male folk (67.2%). The linear composite of disease communalities extracted 84.0% variance of the data set with the following component scores: skin disease (0.98), hypertension (0.96), respiratory disease (0.92), diarrhoea (0.89) and malaria (0.45). Further, CRDs (R2 = 27%, p = 0.012) in Ibadan among aged people could be significantly attributed to influences of climatic parameters. The study suggests building aged peoples’ resilience to emanating impacts through health and nutritional improvement programs, and re-introduction of neighbourhood parks and gardens.

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