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Lymphatic filariasis (LF), an asymptomatic, acute, and chronic condition in human beings, is the second most common vector-borne disease after malaria. According to the World Health Organization, there are 120 million LF cases detected in 81 tropical and subtropical countries, and one billion people are at risk. Therefore, the Global Program to Eliminate Lymphatic Filariasis was launched in 2000, with the primary objective of stopping LF transmission among all at-risk groups using mass drug administration (MDA), managing morbidities, and preventing LF-related impairments using a minimum treatment package. Additionally, other programs such as epidemiological assessment including National Filaria Control Program and World Health Organization recommended routine and pre-MDA microfilaremia surveys also implemented to stop the LF transmission. The routine filaria surveys were also carried out in around 2 000-4 000 individuals/month throughout the year whereas pre-MDA surveys were also conducted every year in approximately 4 000 individuals in four fixed and four random sites. Furthermore, the Transmission Assessment Survey was also conducted to check the risk of LF among primary school children. Moreover, potential diagnostic methods, systematic surveillance regimes, the Direct Network Report system, and regular trainings and awareness may be also effective in preventing the recurrence of LF. Hence, this review emphasizes the potential advocacy tools and various strategies as well as procedures for monitoring, which could be impactful in eliminating LF. [ABSTRACT FROM AUTHOR]

The increasing frequency of urban floods worldwide due to rapid urbanization, frequent climatic extremes, or poor drainage conditions necessitates evaluating the performance of the urban drainage systems (UDS) and enhancing their resilience. In this study, a comprehensive assessment of the UDS of Gurugram City, India, through the concepts of sustainable drainage systems (SuDS) is presented. A stormwater management model (SWMM) was set up to model the existing UDS response to a design storm of a 5-year return period. The increase in percentage imperviousness (due to urbanization) and rainfall intensity (due to climate change) are considered the governing factors for functional failures. The results revealed climate change to be a more severe threat to UDS than urbanization, while their combinations can further worsen the repercussions. The structural failure was modelled using the single link-failure scenarios, where 3 and 12 conduits possessed low resilience and no resilience (severe), respectively. The role of SuDS in enhancing the resilience of UDS was assessed by simulating all these functional and structural failure scenarios for three SuDS-implemented conditions, i.e., only infiltration trenches (SuDS IT), only retention ponds (SuDS RP), and both of them together (SuDS IT+RP). The SuDS abated the flood magnitudes, delayed the time to peak flow, and stored an additional volume of water within the catchment, thereby justifying their efficacy to mitigate the pluvial flood and enhance the resilience of UDS. The findings of this study encourage implementing SuDS over the developing countries to bring down the frequency of urban floods. • The urban drainage system (UDS) of Gurugram City is comprehensively evaluated. • Functional and structural failure scenarios were analysed for their effects on resilience of UDS. • Compared the impacts of increase in imperviousness and rainfall intensity on UDS failure, and the latter is found to be a more serious threat. • The vulnerable conduits in the drainage networks of the city are identified. • The SuDS, viz., infiltration trenches and retention ponds were considered for mitigating the pluvial flood and enhancing the resilience of UDS. • SuDS has managed to delay and reduce the peak outflow from the catchment, assisting the catchment to store more water within it for sustainable use. [ABSTRACT FROM AUTHOR]