1.The 2013-2015 Ebola outbreak in West Africa.
Ji Hoon KANG ; Weon Young CHANG ; Sungwook CHOI ; Joseph RHO ; Keun Hwa LEE
Journal of Bacteriology and Virology 2015;45(4):304-313
Zaire Ebola virus (EBOV) is a fatal human pathogen, with a high case fatality rate (CFR) averaging up to 78%. In March 2014, the World Health Organization (WHO) was made aware of a ZEBOV outbreak in rural Guinea, West Africa. Epidemiologic investigation linked the clinical and laboratory confirmed cases with the presumed first fatality of the outbreak in December 2013. EBOV from Guinea is a separate clade from other ZEBOV strains reported from the Democratic Republic of Congo (DRC) and Gabon. Since the outbreak in March, ZEBOV was also reported in Conakry, Guinea's capital and spread to other neighboring countries. In its largest outbreak, ZEBOV disease expanded through Guinea, Liberia, Sierra Leone, and Nigeria and to Spain, the USA, and the UK. The WHO declared the 2013-2015 West African Ebola epidemic a public health emergency of international concern considering its presumable capacity for further international spread. Early manifestations of EVD (Ebola virus disease) include a high fever, body aches, malaise, and fatigue. Severe diarrhea and other gastrointestinal manifestations such as vomiting were common, while bleeding was a more sporadic finding. The fatality rate was 43% and highest in patients aged > or = 45 years and the overall fitted mean incubation period was 10.3 days (95% CI 9.9~10.7). We present a review of the literature on the emergence of Ebola, and the epidemiologic, clinical, and laboratory records of patients in whom EVD was diagnosed in Sierra Leone, Guinea, Liberia, Mali, the USA, and Spain, its zoonotic origin, and the transmission of ZEBOV, as well as presenting original literature on the current Ebola outbreak.
Africa, Western*
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Congo
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Diarrhea
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Ebolavirus
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Emergencies
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Epidemiology
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Fatigue
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Fever
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Gabon
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Guinea
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Hemorrhage
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Humans
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Liberia
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Mali
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Mortality
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Nigeria
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Public Health
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Sierra Leone
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Spain
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Vomiting
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World Health Organization
2.Disseminated fungal infection by Nannizziopsis in a kidney transplant recipient
Jeva Cernova ; Salma Haddad ; Portia Goldsmith ; Diana Mabayoje ; Jonathan Lambourne ; Mark Melzer ; Jonathan Crook ; Yaqoob Magdi ; Conor Byrne ; Catherine Herwood
Journal of the Philippine Dermatological Society 2024;33(Suppl 1):16-17
We present a case of Nannizziopsis spp infection in an immunocompromised patient, describe clinical findings, investigation results and treatment. This rare fungal infection is reported in reptiles and humans, but not other mammals. There are only twenty case reports in medical literature to date, most in immunocompromised patients.
A 64-year-old kidney transplant recipient from urban Nigeria presented with a verrucous plaque on his dorsal left hand which has grown rapidly over the two months. He was concerned that it might represent cancer. On further examination he also had a subcutaneous fluctuant masses on his left flank and left upper arm, a fleshy mucosal plaque and a large tender fluctuant swelling over his right tibia. He was clinically well, but in the preceding months he reported haemoptysis and 7 kilograms weight loss.
Skin biopsies from multiple sites showed identical features: suppurative granulomatous inflammation and elongated elements consistent with fungal hyphae. Grocott special staining showed scattered fungal hyphae. Beta-D-glucan was raised at 441.4 pg/mL [3-6 pg/mL]. Subsequent molecular identification confirmed Nanniziopsis spp, likely to be N. guarroi. He was treated with intravenous amphotericin-B for 7 weeks and was then switched to oral posaconazole for one month with complete resolution.
Nannizziopsis is an emerging human pathogenic fungus that predominantly causes disease in immunocompromised individuals. This case highlights the importance of suspecting atypical fungal infection in immunocompromised individuals presenting with polymorphic skin lesions and the critical diagnostic role of skin biopsy and culture.
Human ; Middle Aged: 45-64 Yrs Old ; Fungal Infection ; Mycoses ; Immunosuppression ; Immunosuppression Therapy ; Sub-saharan Africa ; Africa South Of The Sahara
3.Parkinson's Disease in Sub-Saharan Africa: A Review of Epidemiology, Genetics and Access to Care
Uduak WILLIAMS ; Oliver BANDMANN ; Richard WALKER
Journal of Movement Disorders 2018;11(2):53-64
A low prevalence of Parkinson's disease (PD) has been reported in the Sub-Saharan Africa (SSA) region. The genetic causes and clinical features of PD in this region have been poorly described. Very few reports have examined the availability and access to evidence-based quality care for people living with PD in this region. We reviewed all publications focusing on idiopathic PD from SSA published up to May 2016 and observed a prevalence of PD ranging from 7/100,000 in Ethiopia to 67/100,000 in Nigeria. The most recent community-based study reported a mean age at onset of 69.4 years. The infrequent occurrence of mutations in established PD genes was also observed in the region. Treatments were non-existent or at best irregular. Additionally, there is a lack of well-trained medical personnel and multidisciplinary teams in most countries in this region. Drugs for treating PD are either not available or unaffordable. Large-scale genetic and epidemiological studies are therefore needed in SSA to provide further insights into the roles of genetics and other etiological factors in the pathogenesis of PD. The quality of care also requires urgent improvement to meet the basic level of care required by PD patients.
Africa South of the Sahara
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Age of Onset
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Epidemiologic Studies
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Epidemiology
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Ethiopia
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Genetics
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Humans
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Nigeria
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Parkinson Disease
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Prevalence
4.An Evaluation of Active Case Detection in Malaria Control Program in Kiyuni Parish of Kyankwanzi District, Uganda
Young Yil BAHK ; Pyo Yun CHO ; Seong Kyu AHN ; Woo Joo LEE ; Tong Soo KIM ; ; UGANDA
The Korean Journal of Parasitology 2018;56(6):625-632
Malaria remains one of the leading health burdens in the developing world, especially in several sub-Saharan Africa countries; and Uganda has some of the highest recorded measures of malaria transmission intensity in the world. It is evident that the prevalence of malaria infection, the incidence of disease, and mortality from severe malaria remain very high in Uganda. Although the recent stable political and economic situation in the last few decades in Uganda supported for a fairly good appreciation of malaria control, the declines in infection, morbidity, and mortality are not sufficient to interrupt transmission and this country is among the top 4 countries with cases of malaria, especially among children under 5 years of age. In fact, Uganda, which is endemic in over 95% of the country, is a representative of challenges facing malaria control in Africa. In this study, we evaluated an active case detection program in 6 randomly selected villages, Uganda. This program covered a potential target population of 5,017 individuals. Our team screened 12,257 samples of malaria by active case detection, every 4 months, from February 2015 to January 2017 in the 6 villages (a total of 6 times). This study assessed the perceptions and practices on malaria control in Kiyuni Parish of Kyankwanzi district, Uganda. Our study presents that the incidence of malaria is sustained high despite efforts to scale-up and improve the use of LLINs and access to ACDs, based on the average incidence confirmed by RDTs.
Africa
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Africa South of the Sahara
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Child
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Health Services Needs and Demand
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Humans
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Incidence
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Malaria
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Mortality
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Prevalence
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Uganda
5.Falls and Their Associated Risks in Parkinson’s Disease Patients in Nigeria.
Temitope Hannah FAROMBI ; Mayowa O OWOLABI ; Adesola OGUNNIYI
Journal of Movement Disorders 2016;9(3):160-165
OBJECTIVE: Falls are a devastating consequence of Parkinson's disease (PD) and are due to motor imbalance. However, the frequency of falls and their risk factors among Nigerians with PD is not known despite the significant increase in PD cases in the country. To assess fall risk factors and frequency in Nigerian PD patients. METHODS: Using an analytical design to compare falling versus non-falling patients, 81 PD patients were assessed for clinical factors, frequency of falls, and candidate risk factors for falls according to the Tinetti Balance and Gait, Unified Parkinson's Disease Rating Scale subsection 1, and Timed Up and Go Tests. Descriptive, bivariate, and multivariate analyses were performed at the 95% confidence level. RESULTS: The mean age of participants was 65.6 ± 9.7 years. Falls were about three times (p < 0.001) more common in PD patients. Of the falling patients, 67.7% sustained injuries, 67.7% had recurrent falls and 44.9% admitted to having a fear of falling. The independent statistical predictors of fall were fear of falling [odds ratio (OR): 3.86], disease severity (OR: 1.09) and disease duration (OR: 1.01). CONCLUSION: The frequency of falls in PD patients was significantly higher when compared with the healthy adult population, and the modifiable predictor was fear of falling with a potential to significantly reduce falls when strategically addressed.
Accidental Falls*
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Adult
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Africa South of the Sahara
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Gait
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Humans
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Multivariate Analysis
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Nigeria*
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Parkinson Disease
;
Risk Factors
6.Epidemiology of HIV/AIDS: Current Status, Trend and Prospect.
Journal of the Korean Medical Association 2007;50(4):296-302
The number of people living with HIV/AIDS continues to grow, estimated to be 39.5 million as of the end of 2006, while 4.3 million people were newly infected in 2006. The proportions of women has continued to grow, currently approaching 50%. Sub-Saharan Africa continues to bear the brunt of global epidemic, comprising 63% of all infections worldwide. The most striking increases have occurred in East Asia, Eastern Europe, and Central Asia. High-risk behaviors (intravenous drug use and unprotected sex between men or with paid sex workers) are the predominant route of transmission. The number of people with HIV/AIDS continues to increase since the first report of HIV in Korea, now approaching 4,580 as of the end of 2006. The real magnitude of HIV epidemic is believed to be much larger than the recent estimates by UNAIDS shows (13,000 people with HIV infection). The prevalence among the general population is still low (less than 0.1%; probably 0.003~0.01%). The HIV epidemic in Korea shows several peculiar features: 1) a male predominance suggesting that the epidemic may still be largely confined to male homosexual community, while the transmission through heterosexual contact remains less prominent, 2) a conspicuous absence of contribution of intravenous drug use to current epidemic, and 3) a very small number of vertical transmission due to the relatively limited number of infected women. The HIV epidemic is expected to continue to grow in the foreseeable future in Korea as well as globally unless drastic efforts are made to cope with the epidemic.
Africa South of the Sahara
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Asia
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Epidemiology*
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Europe, Eastern
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Far East
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Female
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Heterosexuality
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HIV
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Homosexuality
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Humans
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Korea
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Male
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Prevalence
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Seroepidemiologic Studies
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Strikes, Employee
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Unsafe Sex
7.A Case of Tungiasis after Traveling to Congo.
Sang Hee CHA ; Eujin CHO ; Sang Hyun CHO ; Jeong Deuk LEE
Korean Journal of Dermatology 2009;47(12):1385-1388
Tungiasis is an ectoparasitic disease that is caused by the penetration of Tunga penetrans into the epidermis of the host. Tungiasis is indigenous to South Americaand the Caribbean regions, but it has spread to Latin America, India, and sub-Saharan Africa. The area of soft skin such as the soles, toes, webs and subungual regions are the favored sites for sand flea embedding. As the flea enlarges within epidermis a pruritic, painful white or erythematous papulonodule develops. A black central punctum is characteristic. A 32-year-old woman presented with a small black crust on the right sole after traveling to an endemic area(Congo). Histopathologic examination revealed the internal organs of the arthropod embedded intothe epidermis, which allowed a definitive diagnosis of tungiasis. Although tungiasis is common in endemic areas, there has been no report of tungiasis in the Korean literature. We report herein an interesting case of tungiasis in a patient after traveling to Congo.
Adult
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Africa South of the Sahara
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Arthropods
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Caribbean Region
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Congo
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Epidermis
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Female
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Humans
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India
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Latin America
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Siphonaptera
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Skin
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Toes
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Tunga
;
Tungiasis
8.Low topotype diversity of recent foot-and-mouth disease virus serotypes O and A from districts located along the Uganda and Tanzania border
Susan Diana KERFUA ; Gabriel SHIRIMA ; Lughano KUSILUKA ; Chrisostom AYEBAZIBWE ; Esau MARTIN ; Eugene ARINAITWE ; Sarah CLEAVELAND ; Daniel T HAYDON
Journal of Veterinary Science 2019;20(2):e4-
Foot-and-mouth disease (FMD) is one of the most important livestock diseases in East Africa with outbreaks reported annually that cause severe economic losses. It is possible to control disease using vaccination, but antigenic matching of the vaccine to circulating strains is critical. To determine the relationship between foot-and-mouth disease viruses circulating in districts along the Uganda and Tanzanian border between 2016 and 2017 and currently used vaccines, phylogenetic analysis of the full VP1 virus sequences was carried out on samples collected from both sides of the border. A total of 43 clinical samples were collected from animals exhibiting signs of FMD and VP1 sequences generated from 11 of them. Eight out of the 11 sequences obtained belonged to serotype O and three belonged to serotype A. The serotype O sequences obtained showed limited nucleotide divergence (average of 4.9%) and belonged to topotype East Africa-2, whereas the most common O-type vaccine strain used in the region (O/KEN/77/78) belonged to East Africa-1. The serotype A viruses belonged to topotype Africa-G1 (average nucleotide divergence 7.4%), as did vaccine strain K5/1980. However, vaccine strain K35/1980 belonged to Africa G VII with an average sequence divergence of 20.5% from the study sequences. The genetic distances between current vaccine strains and circulating field strains underscores the crucial need for regular vaccine matching and the importance of collaborative efforts for better control of FMD along this border area.
Africa
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Africa, Eastern
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Animals
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Disease Outbreaks
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Foot-and-Mouth Disease Virus
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Foot-and-Mouth Disease
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Livestock
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Serogroup
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Tanzania
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Uganda
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Vaccination
;
Vaccines
9.Travel Pattern and Prescription Analysis at a Single Travel Clinic Specialized for Yellow Fever Vaccination in South Korea.
Bum Sik CHIN ; Jae Yoon KIM ; Sara GIANELLA ; Myunghee LEE
Infection and Chemotherapy 2016;48(1):20-30
BACKGROUND: Travel-related risks for infectious diseases vary depending on travel patterns such as purpose, destination, and duration. In this study, we describe the patterns of travel and prescription of vaccines as well as malaria prophylaxis medication (MPM) at a travel clinic in South Korea to identify the gaps to fill for the optimization of pre-travel consultation. MATERIALS AND METHODS: A cohort of travel clinic visitors in 2011 was constructed and early one-third of the visitors of each month were reviewed. During the study period, 10,009 visited the travel clinic and a retrospective chart review was performed for 3,332 cases for analysis of travel patterns and prescriptions. RESULTS: People receiving yellow fever vaccine (YFV) (n = 2,933) were traveling more frequently for business and tourism and less frequently for providing non-medical service or research/education compared to the 399 people who did not receive the YFV. Overall, most people were traveling to Eastern Africa, South America, and Western Africa, while South-Eastern Asia was the most common destination for the non-YFV group. Besides YFV, the typhoid vaccine was the most commonly prescribed (54.2%), while hepatitis A presented the highest coverage (74.7%) considering the natural immunity, prior and current vaccination history. Additionally, 402 (82.5%) individuals received a prescription for MPM among the 487 individuals travelling to areas with high-risk of malaria infection. Age over 55 was independently associated with receiving MPM prescription, while purpose of providing service and travel duration over 10 days were associated with no MPM prescription, despite travelling to high-risk areas. CONCLUSION: Eastern Africa and South America were common travel destinations among the visitors to a travel clinic for YFV, and most of them were travelling for tourism and business. For the individuals who are traveling to areas with high-risk for malaria, more proactive approach might be required in case of younger age travelers, longer duration, and travel purpose of providing service to minimize the risk of malaria infection.
Africa, Eastern
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Africa, Western
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Antibiotic Prophylaxis
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Asia
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Cohort Studies
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Commerce
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Communicable Diseases
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Hepatitis A
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Immunity, Innate
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Korea*
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Malaria
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Prescriptions*
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Retrospective Studies
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South America
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Travel Medicine
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Typhoid-Paratyphoid Vaccines
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Vaccination*
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Vaccines
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Yellow Fever Vaccine
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Yellow Fever*
10.An evaluation of the effectiveness of the Behaviour Based Safety Initiative card system at a cement manufacturing company in Zimbabwe.
Wilfred N NUNU ; Tendai KATIVHU ; Phakamani MOYO
Safety and Health at Work 2018;9(3):308-313
BACKGROUND: A behavior-based safety initiative card-issuing system was introduced at a cement-manufacturing company in Zimbabwe in 2008 to try and curb accident occurrence. The purpose of this study was to evaluate the effectiveness of the Behaviour Based Safety Initiative card system as a tool used for reducing accident frequencies. METHODS: A mixed-method approach that involving administering piloted questionnaires to 40 out of 244 randomly selected employees, making observations, and reviewing secondary data were done to collect data from different sources in the organization in 2013. A paired t-test was conducted to test whether there was significant difference in accident occurrence before and after the implementation of the BBSI. Scatterplots were also used to establish the correlation between the issuance of cards and the accident and injury occurrence. RESULTS: The findings suggest that the introduction of the card system brought a significant decrease in accident and injury occurrence. A negative correlation between card issuance and accident occurrence was observed, i.e., the greater the number of cards issued, the fewer the number of accidents. It was also noted that the card system positively influenced the mindset of workers towards safe work practices. CONCLUSION: The card system had an influence on the reduction of accidents and injuries. The organization should leverage on issuing more cards to further reduce the number of accidents and injuries to zero.
Zimbabwe*