Biography
Faika Hassanein is a Lecturer of Microbiology and Immunology in the Faculty of Pharmacy and Drug Manufacturing-Pharos University in Alexandria (PUA). She is a Coordinator in the Quality Assurance Center in the PUA. She has awarded as Distinguished Scientist in VIRA- India. She has her expertise in diagnosis of the parasites especially opportunistic parasites. She has experience in the public health and prevention and control of parasitic infections. Also, she is interested in Immunology, Biotechnology and Molecular Biology especially Molecular Parasitology. She had studied Biochemistry, Forensic Chemistry, Analytical Biochemistry, Tropical Health (Parasitology and Medical Entomology) and now she is studying Biotechnology
Abstract
Background: Wastewater contains micro-organisms (bacteria, viruses, fungi and parasites) derived from human and animal excreta that can cause infections especially if work practice and personal protective equipment don\'t protect workers from contacting these microbes. \r\n\r\nAim: The aim of this present work was to study the occupational health impact from some microbial hazards on municipal sewage workers. \r\n\r\nMethods: A cross-sectional study was carried out in 2016, on workers from different sectors in Alexandria Governorate, Egypt. Stool samples collected were subjected to the Kato-Katz, Ether concentration techniques, Jones’ Media culture, modified Ziehl-Neelsen and quick hot Gram-chromotrope staining. Stool samples were also tested for H. pylori Ag. Serum was separated from blood samples to detect HCV antibodies and HBVsAg. \r\n\r\nResults: Out of the 410 workers examined, 56.8% were suffering from intestinal parasitic infections (IPI), 12.2% had hepatitis mainly HCV (9.8%) while 31.2% harbored H. pylori Protozoal infections amounted to 54.6% while 5.9% only had helminthic infections. Blastocystis hominis infection was the most prevalent (46.8%) followed by Cryptosporidium, E. histolytica and microsporidium (15.6%, 11.7% and 7.8% respectively). 25.6% of workers presented with single intestinal parasitic infection while 30.5% had multiple IPI. Significant higher rates of IPI and H. pylori were observed among workers frequently contacting sewage. Also, IPI was statistically higher among young workers (<40 years) while hepatitis was significantly more prevalent among those from rural areas. \r\n\r\nConclusions: Sewage workers were found to be vulnerable to infections (70.5%), particularly IPI. Our findings call for the importance of the self- protection measures that should go hands-in-hands with regular investigation and treatment\r\n
Biography
Nabi M Nge has completed her MSc from the University of Westminster, London, in 2005 and currently, pursuing her PhD in the University of Calabar, Nigeria. She is a Research Associate in the Cameroon Society for Quality Analysis/Diagnosis, Rural Development Management (CSQARDEM). She has published two articles in reputed journals
Abstract
Single nucleotide polymorphism in Plasmodium falciparum circumsporozoite protein gene (Pfcsp) T cell epitope determines haplotype diversity thus; it may affect haplotype distribution in different populations. Pfcsp T cell epitope haplotype diversity increases over time but its distribution in target subpopulations remains unknown. To assess the pattern of haplotype distribution and its age in a population; haplotypes and their frequencies were identified in children with uncomplicated malaria placed in two age groups. Haplotypes evolutionary history was then determined. This paper suggests the effect of increase in haplotype diversity over time on its distribution pattern in intense transmission regions. A high genetic diversity was observed from 52 sequences (0.923) resulting in 24 haplotypes; nine haplotypes were unique to this study population. Four haplotypes accounting for 48% were predominant in the general population (Cam1065-(17.3%), Gm06-(11.5%), Cam1028-(9.6%) and E12-(9.6%)); Gm06 was common in < 5 years age group (p=0.0299) and Cam1028 in the 5-11 years age group (p=0.0243). The two age groups showed different predominant haplotypes (p = 0.0000002) which seems to occur differently in the population. Cam1065, Gm06 and 7G8 predominant in the < 5 years category seems to be older in the population than Cam1028, E12 and Ken426 predominant in the 5-11 years group (Middle vs top of a rooted phylogenetic tree). There appears to be a time-dependent age distribution pattern of predominant Pfcsp T cell epitope haplotypes in intense transmission areas. This emphasizes the need for continued exploration of haplotype distribution patterns and its effects in intense transmission regions