scispace - formally typeset
Search or ask a question

How does rainfall and temperature affect malaria in africa? 

Best insight from top research papers

Rainfall and temperature have a significant impact on malaria transmission in Africa. Fluctuations in temperature can either lower or speed up the rate of malaria transmission. Additionally, rainfall plays a role in the transmission of malaria by providing breeding sites for mosquitoes. However, a high amount of rainfall does not have a significant effect on malaria transmission. Studies have shown that seasonal malaria transmission occurs within a temperature range of 15°C–40°C and is sustained if the average temperature is well above 15°C or below 40°C . Monthly maximum rainfall for seasonal malaria transmission should not exceed 600 mm in certain regions of Africa . Rainfall and temperature seasonality are significantly associated with malaria seasonality in most parts of Sub-Saharan Africa, except in west Central Africa . In areas with significant elevations, such as East Africa, topography also influences the relationship between climate variables and malaria seasonality .

Answers from top 5 papers

More filters
Papers (5)Insight
The provided paper is about the impact of rainfall and temperature on malaria dynamics in the KwaZulu-Natal province, South Africa. However, the specific impact of rainfall and temperature on malaria in Africa is not mentioned in the paper.
Rainfall and temperature seasonality are important drivers of malaria seasonality in most parts of Sub-Saharan Africa, except in west Central Africa. The study found that a temperature window of 15-40 degrees Celsius is required for seasonal malaria transmission, and monthly maximum rainfall should not exceed 600 mm in west Central Africa and 400 mm in other regions.
Rainfall and temperature seasonality were found to be significantly associated with malaria seasonality in Sub-Saharan Africa, except in west Central Africa. The study focuses on the impact of climate on malaria transmission seasonality in the region.
Rainfall and temperature affect the transmission of malaria in Africa. Fluctuations in temperature can lower or speed up the rate of transmission, while rainfall provides breeding sites for mosquitoes. However, a high amount of rainfall does not have a significant effect on malaria transmission.
Rainfall and temperature seasonality were found to be significantly associated with malaria seasonality in Sub-Saharan Africa, except in west Central Africa. The study did not provide specific details on how rainfall and temperature affect malaria transmission.

Related Questions

What affects weather prediction in africa?5 answersWeather prediction in Africa is influenced by various factors. The accuracy of forecasts is impacted by the representation of convection in weather models. Utilizing convection-permitting models can enhance the intensity and timing of precipitation systems, particularly crucial in regions like West Africa where organized convection forms mesoscale convective systems. The spatiotemporal skill of short-term rainfall forecasts across Africa is evaluated using numerical weather models, such as the European Centre for Medium-Range Weather Forecasts (ECMWF) and the National Centers for Environmental Prediction-Global Forecast System (NCEP-GFS). Additionally, a multimodel superensemble technique has been developed to improve the predictability of weather over various African regions, showing superior forecasts compared to individual models. These factors collectively play a significant role in shaping the accuracy and reliability of weather predictions in Africa.
How does climate change impact malaria?5 answersClimate change significantly impacts malaria transmission dynamics. Studies show that rising temperatures and extreme precipitation due to anthropogenic climate change have increased the burden of childhood malaria in sub-Saharan Africa since 1901, with an average of 84 excess cases per 100,000 children by 2014. Even in areas with intensive malaria control interventions, climatic factors play a crucial role in driving malaria outbreaks, as seen in western Kenya from 2008-2019. The distribution of malaria-transmitting mosquitoes is highly sensitive to climate, with rainfall affecting the availability of breeding sites and temperature influencing their development period. Climate variability, including precipitation and temperature, is key in predicting malaria incidence in Sub-Saharan Africa, emphasizing the need for better models to monitor and limit disease outbreaks. The global phenomenon of climate change, exacerbated by human activities, has led to various environmental changes that directly or indirectly affect the spread of malaria, highlighting the intricate relationship between climate change and public health.
How does climate change affect the incidence of malaria?4 answersClimate change affects the incidence of malaria by influencing temperature and rainfall patterns. Fluctuations in temperature can either lower or speed up the transmission rate of malaria, while rainfall provides breeding sites for mosquitoes. Studies have shown a positive correlation between malaria transmission and temperature and rainfall networks. Future temperature increases due to climate change are projected to have adverse effects on malaria infection rates, particularly in Africa. Climate variability, even in areas with intensive malaria control interventions, still plays a significant role in driving malaria incidence. Human-caused climate change has been found to increase the overall prevalence of childhood malaria across sub-Saharan Africa since 1901. Climate conditions, such as increased temperature and rainfall intensity, can modulate malaria transmission by affecting the reproductive cycle of the parasite and the development of mosquito populations.
How do temperatures affect malaria in africa?4 answersTemperatures have a significant impact on malaria transmission in Africa. Fluctuations in temperature can either lower or speed up the rate of malaria transmission. Higher temperatures generally increase the transmission of malaria, while lower temperatures can slow it down. The study by Li and Managi predicts that as temperatures continue to rise due to greenhouse gas emissions, the global malaria infection rates will increase, with Africa being the most affected region. Yamba's research shows that seasonal malaria transmission occurs within a temperature range of 15°C–40°C, and transmission is sustained if the average temperature is well above 15°C or below 40°C. The study by Diouf et al. also highlights the impact of warm temperatures on malaria transmission in West Africa, particularly during wet years. Overall, higher temperatures contribute to the spread and intensity of malaria in Africa.
How will climate change affect malaria distribution?5 answersClimate change is expected to have significant impacts on the distribution of malaria. Studies suggest that as global temperatures increase and weather conditions change, the geographic range of malaria may expand, potentially threatening previously unexposed areas. The distribution of malaria is closely linked to the distribution and abundance of mosquito vectors, which are influenced by environmental factors such as temperature, rainfall, and humidity. Models project that under different climate scenarios, the potential range of malaria vectors may increase, leading to higher prevalence and population density of malaria-transmitting mosquitoes. The magnitude of change in malaria prevalence is predicted to be higher in the later part of the 21st century under high emission scenarios, driven by increasing temperature and fluctuating rainfall patterns. These changes may result in a significant increase in malaria burden, particularly in regions such as Sahel and Sudan savannas, Humid forest, and Derived savanna.
What are the weather conditions of West Africa?4 answersWest Africa experiences a division of the year into two well-defined seasons: the wet and the dry. The wet season occurs from April to September and is characterized by rainfall brought by the south-west monsoon winds. The dry season, known as the Harmattan, occurs from October to March and is characterized by dry and dusty conditions, with temperatures falling rapidly at night. The region also experiences the Intertropical Discontinuity (ITD), which influences moist convection and rainfall patterns. NASA's Atmospheric Infrared Sounder (AIRS) measurements have shown that the ITD exhibits seasonal variations and diurnal-scale variations, with increased instability and thunderstorm propagation at night. The Dynamics–Aerosol–Chemistry–Cloud Interactions in West Africa (DACCIWA) project has further studied the large-scale setting and weather systems in the region, including the monsoon onset and the influence of Pacific La Nina, Atlantic El Nino, and warm eastern Mediterranean conditions on precipitation. Climate change projections indicate that future climate in West Africa will be characterized by more extreme temperatures and precipitation, with potential socioeconomic implications.

See what other people are reading

What is general biology subject with citation?
5 answers
General Biology is a foundational discipline that encompasses the study of living organisms, emphasizing the fundamental characteristics and laws of life through the comparative analysis of representative plants and animals. It serves as a basis for specialized courses in fields like Environmental Science and Engineering, contributing to the development of essential knowledge and skills for students. The course often involves practical laboratory work to provide students with a hands-on understanding of biological concepts and phenomena. Additionally, the application of innovative teaching methods, such as the "double-cycle teaching mode," has been shown to enhance the effectiveness of General Biology education, making it more engaging and impactful for students.
How does grit mindset contribute to the success of students from disadvantaged socioeconomic backgrounds in university settings?
4 answers
Grit mindset plays a crucial role in the success of students from disadvantaged socioeconomic backgrounds in university settings. Research indicates that grit, characterized by passion and perseverance towards goals despite obstacles, positively correlates with academic achievement. Additionally, students with higher levels of grit are more likely to succeed in higher education, especially when facing challenges. Moreover, grit can act as a buffer against negative factors like depressive symptoms, potentially enhancing academic performance. Particularly in times of crisis, such as the Covid-19 pandemic, grit becomes essential for students to overcome uncertainties and focus on their academic goals. Therefore, fostering a grit mindset among students from disadvantaged backgrounds can significantly contribute to their success in university settings.
What is the importance of water quality monitoring?
4 answers
Water quality monitoring is crucial due to the contamination of water bodies from various sources like chemicals and waste, leading to waterborne illnesses and ecosystem disruption. The global decline in water quality is exacerbated by industrial growth, urbanization, and excessive use of resources, emphasizing the necessity for continuous monitoring. Traditional monitoring methods are costly and labor-intensive, highlighting the need for user-friendly, real-time monitoring systems to ensure clean water availability. Monitoring water quality is essential for preventing waterborne diseases, safeguarding ecosystems, and improving overall quality of life by ensuring the consumption of safe and clean water.
What are the most effective strategies for preventing and treating infections in elderly patients, based on recent studies?
5 answers
Recent studies emphasize the importance of utilizing biomarkers like procalcitonin (PCT) for risk assessment and antibiotic stewardship in elderly patients, who are vulnerable to infections and often present ambiguous clinical signs, leading to risks of both over- and undertreatment. In nursing homes, infection prevention is crucial due to the high prevalence and transmissibility of infections among residents, necessitating structured procedures and compliance with preventive measures. Elderly patients with skin and soft tissue infections (SSTIs) require careful management to avoid antibiotic overtreatment, especially considering atypical clinical presentations and the need to address factors associated with bacterial superinfections. Additionally, for elderly patients with glomerular diseases, strategies involving specific antimicrobial prophylaxis and vaccine developments are essential to mitigate infectious complications effectively.
What is suitable temperature to extract fat from oreo cookie?
5 answers
The suitable temperature for extracting fat from Oreo cookies can vary based on the desired outcome. Studies have shown that the effects of temperature on cookies are crucial for determining quality attributes. Additionally, the oxidative stability of fats used in baking cookies can be influenced by the heating temperature. Moreover, a low-temperature process utilizing a closed system has been proposed for extracting oil and fat, emphasizing the importance of maintaining low temperatures during extraction. Therefore, a temperature range that balances the preservation of nutrients and the extraction efficiency, such as temperatures below 15°C as suggested in the low-temperature extraction process, could be suitable for extracting fat from Oreo cookies while maintaining the quality of the extracted fats.
What are the potential mechanisms underlying the effects of exercise on HDL-C levels and overall cardiovascular health?
5 answers
Exercise plays a crucial role in improving HDL-C levels and overall cardiovascular health through various mechanisms. Regular exercise, regardless of weight change, has been shown to independently reduce mortality by enhancing lipid profiles. Exercise training can increase HDL-C levels and decrease plasma triglycerides, which are essential in combating atherogenesis. Additionally, exercise can improve parameters of HDL metabolism, such as cholesterol transfer to HDL and HDL subclass distribution, in both young and elderly individuals. These improvements in HDL function and lipid profiles contribute to the anti-atherosclerotic potential of HDL, ultimately benefiting cardiovascular health. Overall, exercise training is a valuable lifestyle intervention that positively impacts cardiovascular health by enhancing HDL-C levels and function through various molecular mechanisms.
What is the current role of hypertension specialist nurses in managing blood pressure control and reducing cardiovascular risks?
5 answers
Hypertension specialist nurses play a crucial role in managing blood pressure control and reducing cardiovascular risks through nurse-led interventions. Research indicates that nurse-led interventions significantly improve systolic and diastolic blood pressure compared to usual care, emphasizing the effectiveness of their role in hypertension management. These interventions also lead to modifications in lifestyle behaviors such as diet and physical activity, contributing to overall cardiovascular risk reduction. Additionally, studies highlight that nurses in primary care facilities spend a significant amount of time on direct and indirect hypertension activities, showcasing the dedication of nurses towards managing hypertension and associated risks. Overall, the evidence underscores the pivotal role of hypertension specialist nurses in enhancing patient outcomes and addressing the global burden of hypertension and cardiovascular diseases.
What are the characteristic features and properties of cycas starch?
5 answers
Cycas starch, specifically from Cycas revoluta seeds, exhibits unique characteristics. It has amylose contents ranging from 34.3% to 35.5%, with spherical-truncated granules of less than 15 μm diameter and A-type crystallinity. In terms of physicochemical properties, Cycas revoluta starch shows similarities to potato starch in viscosity but has a higher gelatinization temperature and forms harder gels than rice starch upon cooling. Additionally, the starch's molecular weight, branching degree, and branch chain length distribution differ significantly from mainstream starches. These distinctive features make Cycas revoluta starch a potential candidate for various food and non-food applications, offering a novel alternative in starch utilization.
What are the current state-of-the-art techniques in image segmentation using texture-based methods?
5 answers
Current state-of-the-art techniques in image segmentation using texture-based methods involve a combination of restoration of noisy textures and advanced segmentation algorithms. Researchers have focused on addressing noisy textures for applications like quality evaluation, medical imaging, and facial expression recognition. These techniques include utilizing Markov Random Fields (MRF) and customized Median Filters for segmentation after restoring images contaminated with noise, resulting in significant accuracy improvements compared to benchmark approaches. Additionally, segmentation methods encompass various approaches such as thresholding, edge-based techniques, region-based methods, clustering, deep neural networks, and hybrid models, each with its advantages and applications in image segmentation. The integration of texture models like ULBP with supervised and unsupervised classifiers further enhances segmentation accuracy.
How does storage temperature affect the maturity of apples?
4 answers
Storage temperature significantly influences the maturity of apples. Lower temperatures, such as 0 to 1°C, are recommended for chilling-sensitive apple cultivars to prevent chilling injuries and maintain quality. Additionally, the use of controlled atmosphere (CA) storage at specific temperatures can induce ethylene production and ripening in apples, especially for long-term storage. The dry matter content (DMC) of apples at harvest is correlated with important quality traits like soluble solids content (SSC) and titratable acidity (TA) after storage, highlighting the impact of initial maturity on post-storage quality. Furthermore, the Delta Absorbance Meter® index has been used to assess harvest maturity and predict storage disorders in apples, showing regional variations in maturity indicators across different locations. Overall, maintaining appropriate storage temperatures is crucial for preserving apple maturity and quality during storage.
What are the specific genetic markers that can be used to trace the origin of purple rice?
5 answers
Specific genetic markers that can be utilized to trace the origin of purple rice include SSR markers, the OsPA gene, and the PL1 molecular marker. SSR markers have been used to assess genetic diversity in colored rice germplasm collections. The OsPA gene, identified in a purple apiculus mutant, regulates anthocyanin content in rice grains. Additionally, the PL1 molecular marker has been developed for identifying the rice purple leaf gene PL1, aiding in the rapid identification of genetic traits related to purple rice leaves. These markers provide valuable tools for studying the genetic mechanisms underlying purple rice traits and can assist in breeding programs by enabling the selection of desirable traits in rice varieties.