ArticlePloS one2017
An association between decreasing incidence of invasive non-typhoidal salmonellosis and increased use of antiretroviral therapy, Gauteng Province, South Africa, 2003-2013.
Article in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.
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Who cites it
14 citing papers in PubMed, 1 synthesis or guideline pooled it, 22 citations in OpenAlex.
- The global burden of non-typhoidal salmonella invasive disease: a systematic analysis for the Global Burden of Disease Study 2017.The Lancet. Infectious diseases · 2019Pooled it
- Article
- HIV and Mediterranean Zoonoses: A Review of the Literature.Infectious disease reports · 2022Review
- Genetic characterization ofAccess microbiology · 2022Article
- Molecular Detection of Integrons, Colistin andMicroorganisms · 2022Article
- The genomic epidemiology of multi-drug resistant invasive non-typhoidalBMJ global health · 2021Article
- Staged progression epidemic models for the transmission of invasive nontyphoidalMathematical biosciences and engineering : MBE · 2021Article
- Pathogenic signature of invasive non-typhoidalHuman vaccines & immunotherapeutics · 2020Review
- A rare case of Colistin-resistant Salmonella Enteritidis meningitis in an HIV-seropositive patient.BMC infectious diseases · 2019Article
- Invasive NontyphoidalEcoSal Plus · 2019Review
- Detection of Salmonella from animal sources in South Africa between 2007 and 2014.Journal of the South African Veterinary Association · 2018Article
- The epidemiology of febrile illness in sub-Saharan Africa: implications for diagnosis and management.Clinical microbiology and infection : the official publication of the European Society of Clinical Microbiology and Infectious Diseases · 2018Review
- Salmonella infection: Interplay between the bacteria and host immune system.Immunology letters · 2017Review
- Observational
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Authors and funding
8 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundHIV-infected persons are at increased risk of opportunistic infections, including invasive nontyphoidal Salmonella (iNTS) infections; antiretroviral therapy (ART) reduces this risk. We explored changing iNTS incidence associated with increasing ART availability in South Africa.
methodsLaboratory-based surveillance for iNTS was conducted in Gauteng Province, South Africa, with verification using the National Health Laboratory Service's Central Data Warehouse (CDW), between 2003 and 2013. Isolates were serotyped at the Centre for Enteric Diseases. CDW data on patient numbers obtaining HIV viral load measurements provided estimates of numbers of HIV-infected patients receiving ART. A Poisson regression model was used to measure the changing incidence of iNTS infection from 2003 to 2013. The correlation between the incidence of iNTS and ART use from 2004 to 2013 was determined using Pearson's correlation coefficient.
resultsFrom 2003-2013, the incidence of iNTS per 100,000 population per year decreased from 5.0 to 2.2 (p < .001). From 2004 to 2013, the incidence per 100,000 population of HIV viral load testing increased from 75.2 to 3,620.3 (p < .001). The most common serotypes causing invasive disease were Salmonella enterica serovar Typhimurium (Salmonella Typhimurium), and Salmonella Enteritidis: 2,469 (55.4%) and 1,156 (25.9%) of 4,459 isolates serotyped, respectively. A strong negative correlation was observed between decreasing iNTS incidence and increasing ART use from 2004 to 2013 (r = -0.94, p < .001). Similarly, decreasing incidence of invasive Salmonella Typhimurium infection correlated with increasing ART use (r = -0.93, p < .001). Incidence of invasive Salmonella Enteritidis infection increased, however (r = 0.95, p < .001). Between 2003 and 2004, fewer adult men than women presented with iNTS (male-to-female rate ratio 0.73 and 0.89, respectively). This was reversed from 2005 through 2013 (ranging from 1.07 in 2005 to 1.44 in 2013). Adult men accessed ART less (male-to-female rate ratio ranging from 0.61 [2004] to 0.67 [2013]).
conclusionsThe incidence of iNTS infections including Salmonella Typhimurium decreased significantly in Gauteng Province in association with increased ART utilization. Adult men accessed ART programs less than women, translating into increasing iNTS incidence in this group. Monitoring iNTS incidence may assist in monitoring the ART program. Increasing incidence of invasive Salmonella Enteritidis infections needs further elucidation.
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