| experimental assessment of the vector competence of culex (culex) neavei theobald with west nile and sindbis viruses in south africa. | culex univittatus is the maintenance vector of west nile (wn) and sindbis (sin) viruses on the inland plateau of south africa and also transfers infection to man. both viruses have frequently been isolated from this mosquito and human immunity is high on the plateau. in the natal lowlands where cx univittatus is replaced by cx neavei, apparently the main vector there, immune rates are low and few isolations have been made from this species. vector competence experiments were carried out with cx ... | 1986 | 3024364 |
| a description of village chicken production systems and prevalence of gastrointestinal parasites: case studies in limpopo and kwazulu-natal provinces of south africa. | the majority of rural households in developing countries own village chickens that are reared under traditional scavenging systems with few inputs and exposure to various parasitic infestations. understanding of the village chicken farming system and its influence on helminth infestation is a prerequisite for optimal prevention and control strategies. this study investigated the village chicken production system and associated gastrointestinal parasites in 87 households from limpopo (n = 39) and ... | 2016 | 27247063 |
| observational study of the prevalence and antibiotic resistance of campylobacter spp. from different poultry production systems in kwazulu-natal, south africa. | campylobacter bacteria are important foodborne pathogens that cause acute diarrheal illness, and infection is often associated with contaminated poultry. in a blind observational study, the prevalence and resistance profiles of thermophilic campylobacter strains collected from different poultry production systems were tested against the clinically used antibiotics ciprofloxacin, tetracycline, erythromycin, gentamicin, and streptomycin. campylobacter strains were isolated from chickens in rural ... | 2012 | 22221370 |
| prevalence of antibiotic resistance in campylobacter isolates from commercial poultry suppliers in kwazulu-natal, south africa. | campylobacter jejuni isolated from broiler and layer chickens from registered abattoirs in kwazulu-natal, south africa, were tested for their susceptibility to eight antibiotics. | 2008 | 18819970 |
| phylogenetic analysis of low-pathogenicity avian influenza h6n2 viruses from chicken outbreaks (2001-2005) suggest that they are reassortants of historic ostrich low-pathogenicity avian influenza h9n2 and h6n8 viruses. | low-pathogenicity (lpai) and high-pathogenicity (hpai) avian influenza viruses are periodically isolated from south african ostriches, but during 2002 the first recorded outbreak of lpai (h6n2) in south african chickens occurred on commercial farms in the camperdown area of kwazulu/natal (kzn) province. sequence analysis of all eight genes were performed and phylogenetic analysis was done based on the hemagglutinin and neuraminidasc sequences. results from phylogenetic analyses indicated that th ... | 2007 | 17494567 |
| outbreaks of avian influenza h6n2 viruses in chickens arose by a reassortment of h6n8 and h9n2 ostrich viruses. | the first recorded outbreak of avian influenza (ai) in south african chickens (low pathogenicity h6n2) occurred at camperdown, kwazulu/natal province (kzn) in june 2002. to determine the source of the outbreak, we defined the phylogenetic relationships between various h6n2 isolates, and the previously unpublished gene sequences of an h6n8 virus isolated in 1998 from ostriches in the leeu gamka region (a/ostrich/south africa/kk98/98). we demonstrated that two distinct genetic h6n2 lineages (sub-l ... | 2007 | 16927114 |
| concentrations and human health risk assessment of ddt and its metabolites in free-range and commercial chicken products from kwazulu-natal, south africa. | organochlorine pesticides such as dichlorodiphenyltrichloroethane (ddt) have been used in agriculture and for disease control purposes over many decades. reports suggest that ddt exposure may result in a number of adverse effects in humans. in the kwazulu-natal province of south africa, ddt is sprayed annually in homes (indoor residual spraying) to control the mosquito vector of malaria. in the northern part of the province, samples of free-range chicken meat (n = 48) and eggs (n = 13), and comm ... | 2017 | 28737099 |
| population genetic structure of ascaridia galli of extensively raised chickens of south africa. | ascaridia galli is one of the most common nematode affecting chickens. this study characterized a. galli parasites collected from south african village chickens of limpopo (n=18) and kwazulu-natal (n=22) provinces using the 510bp sequences of cytochrome c oxidase subunit 1 gene of the mitochondrial dna. fourteen and 12 polymorphic sites were observed for limpopo and kwazulu-natal sequences, respectively. six haplotypes were observed in total. haplotype diversity was high and ranged from 0.749 fo ... | 2016 | 26801600 |
| prevalence of helminth parasites in free-range chickens from selected rural communities in kwazulu-natal province of south africa. | a total of 79 chickens were randomly collected from 4 rural localities and processed to detect the presence of helminth parasites and their prevalences. sixteen helminth species comprising 12 nematode and 4 cestode species were recorded from the 4 localities. syngamus trachea and cyathostoma spp. were the only helminth species recovered from the respiratory tract and the rest of the helminth species were from the gastrointestinal tract. the most prevalent nematode species across the 4 localities ... | 2010 | 21247015 |
| nutritional composition of commonly consumed composite dishes from rural villages in empangeni, kwazulu-natal, south africa. | accurate nutrient composition data for composite dishes unique to a population is essential for the development of a nutrient database and the calculation of dietary intake. the present study aimed to provide the nutritional composition of composite dishes frequently consumed in rural kwazulu-natal, south africa. | 2013 | 23216447 |