Journal Article > Short ReportAbstract
Pediatr Infect Dis J. 2013 July 30; Volume 33 (Issue 1); DOI:10.1097/INF.0b013e3182a6e1cd
Moons P, Thallinger M
Pediatr Infect Dis J. 2013 July 30; Volume 33 (Issue 1); DOI:10.1097/INF.0b013e3182a6e1cd
During an outbreak of measles in a refugee camp in Ethiopia, 9 patients (age range 4 months to 18 years) were diagnosed with subcutaneous emphysema. Incidence of this rare complication of measles in this refugee camp was higher than previously reported. We hypothesize that the high incidence is most likely related to poor physical state of the refugee population with high rates of malnutrition.
Journal Article > ResearchFull Text
PLOS One. 2014 December 8; Volume 9 (Issue 12); DOI:10.1371/journal.pone.0114702
Polonsky JA, Martinez-Pino I, Nackers F, Chonzi P, Manangazira P, et al.
PLOS One. 2014 December 8; Volume 9 (Issue 12); DOI:10.1371/journal.pone.0114702
Typhoid fever remains a significant public health problem in developing countries. In October 2011, a typhoid fever epidemic was declared in Harare, Zimbabwe - the fourth enteric infection epidemic since 2008. To orient control activities, we described the epidemiology and spatiotemporal clustering of the epidemic in Dzivaresekwa and Kuwadzana, the two most affected suburbs of Harare.
Journal Article > ResearchFull Text
BMC Infect Dis. 2018 April 11; Volume 18 (Issue 1); 172.; DOI:10.1186/s12879-018-3073-1
le Polain de Waroux O, Cohuet S, Ndazima D, Kucharski AJ, Juan-Giner A, et al.
BMC Infect Dis. 2018 April 11; Volume 18 (Issue 1); 172.; DOI:10.1186/s12879-018-3073-1
BACKGROUND
Quantification of human interactions relevant to infectious disease transmission through social contact is central to predict disease dynamics, yet data from low-resource settings remain scarce.
METHODS
We undertook a social contact survey in rural Uganda, whereby participants were asked to recall details about the frequency, type, and socio-demographic characteristics of any conversational encounter that lasted for ≥5 min (henceforth defined as 'contacts') during the previous day. An estimate of the number of 'casual contacts' (i.e. < 5 min) was also obtained.
RESULTS
In total, 566 individuals were included in the study. On average participants reported having routine contact with 7.2 individuals (range 1-25). Children aged 5-14 years had the highest frequency of contacts and the elderly (≥65 years) the fewest (P < 0.001). A strong age-assortative pattern was seen, particularly outside the household and increasingly so for contacts occurring further away from home. Adults aged 25-64 years tended to travel more often and further than others, and males travelled more frequently than females.
CONCLUSION
Our study provides detailed information on contact patterns and their spatial characteristics in an African setting. It therefore fills an important knowledge gap that will help more accurately predict transmission dynamics and the impact of control strategies in such areas.
Quantification of human interactions relevant to infectious disease transmission through social contact is central to predict disease dynamics, yet data from low-resource settings remain scarce.
METHODS
We undertook a social contact survey in rural Uganda, whereby participants were asked to recall details about the frequency, type, and socio-demographic characteristics of any conversational encounter that lasted for ≥5 min (henceforth defined as 'contacts') during the previous day. An estimate of the number of 'casual contacts' (i.e. < 5 min) was also obtained.
RESULTS
In total, 566 individuals were included in the study. On average participants reported having routine contact with 7.2 individuals (range 1-25). Children aged 5-14 years had the highest frequency of contacts and the elderly (≥65 years) the fewest (P < 0.001). A strong age-assortative pattern was seen, particularly outside the household and increasingly so for contacts occurring further away from home. Adults aged 25-64 years tended to travel more often and further than others, and males travelled more frequently than females.
CONCLUSION
Our study provides detailed information on contact patterns and their spatial characteristics in an African setting. It therefore fills an important knowledge gap that will help more accurately predict transmission dynamics and the impact of control strategies in such areas.
Journal Article > ResearchFull Text
Int J Environ Res Public Health. 2022 May 13; Volume 19 (Issue 10); 5936.; DOI:10.3390/ijerph19105936
Kamara KN, Squire JS, Kanu JS, Carshon-Marsh R, Koroma Z, et al.
Int J Environ Res Public Health. 2022 May 13; Volume 19 (Issue 10); 5936.; DOI:10.3390/ijerph19105936
Implementing and monitoring infection prevention and control (IPC) measures at immigration points of entry (PoEs) is key to preventing infections, reducing excessive use of antimicrobials, and tackling antimicrobial resistance (AMR). Sierra Leone has been implementing IPC measures at four PoEs (Queen Elizabeth II Quay port, Lungi International Airport, and the Jendema and Gbalamuya ground crossings) since the last Ebola outbreak in 2014–2015. We adapted the World Health Organization IPC Assessment Framework tool to assess these measures and identify any gaps in their components at each PoE through a cross-sectional study in May 2021. IPC measures were Inadequate (0–25%) at Queen Elizabeth II Quay port (21%; 11/53) and Jendema (25%; 13/53) and Basic (26–50%) at Lungi International Airport (40%; 21/53) and Gbalamuya (49%; 26/53). IPC components with the highest scores were: having a referral system (85%; 17/20), cleaning and sanitation (63%; 15/24), and having a screening station (59%; 19/32). The lowest scores (0% each) were reported for the availability of IPC guidelines and monitoring of IPC practices. This was the first study in Sierra Leone highlighting significant gaps in the implementation of IPC measures at PoEs. We call on the AMR multisectoral coordinating committee to enhance IPC measures at all PoEs.
Journal Article > ResearchFull Text
BMJ Glob Health. 2020 April 14; Volume 5 (Issue 4); e002141.; DOI:10.1136/bmjgh-2019-002141.
Farley ES, Oyemakinde MJ, Schuurmans J, Ariti C, Saleh F, et al.
BMJ Glob Health. 2020 April 14; Volume 5 (Issue 4); e002141.; DOI:10.1136/bmjgh-2019-002141.
BACKGROUND
Noma, a rapidly progressing infection of the oral cavity, mainly affects children. The true burden is unknown. This study reports estimated noma prevalence in children in northwest Nigeria.
METHODS
Oral screening was performed on all ≤15 year olds, with caretaker consent, in selected households during this cross-sectional survey. Noma stages were classified using WHO criteria and caretakers answered survey questions. The prevalence of noma was estimated stratified by age group (0–5 and 6–15 years). Factors associated with noma were estimated using logistic regression.
RESULTS
A total of 177 clusters, 3499 households and 7122 children were included. In this sample, 4239 (59.8%) were 0–5 years and 3692 (52.1%) were female. Simple gingivitis was identified in 3.1% (n=181; 95% CI 2.6 to 3.8), acute necrotising gingivitis in 0.1% (n=10; CI 0.1 to 0.3) and oedema in 0.05% (n=3; CI 0.02 to 0.2). No cases of late-stage noma were detected. Multivariable analysis in the group aged 0–5 years showed having a well as the drinking water source (adjusted odds ratio (aOR) 2.1; CI 1.2 to 3.6) and being aged 3–5 years (aOR 3.9; CI 2.1 to 7.8) was associated with being a noma case. In 6–15 year olds, being male (aOR 1.5; CI 1.0 to 2.2) was associated with being a noma case and preparing pap once or more per week (aOR 0.4; CI 0.2 to 0.8) was associated with not having noma. We estimated that 129120 (CI 105294 to 1 52 947) individuals <15 years of age would have any stage of noma at the time of the survey within the two states. Most of these cases (93%; n=120 082) would be children with simple gingivitis.
CONCLUSIONS
Our study identified a high prevalence of children at risk of developing advanced noma. This disease is important but neglected and therefore merits inclusion in the WHO neglected tropical diseases list.
Noma, a rapidly progressing infection of the oral cavity, mainly affects children. The true burden is unknown. This study reports estimated noma prevalence in children in northwest Nigeria.
METHODS
Oral screening was performed on all ≤15 year olds, with caretaker consent, in selected households during this cross-sectional survey. Noma stages were classified using WHO criteria and caretakers answered survey questions. The prevalence of noma was estimated stratified by age group (0–5 and 6–15 years). Factors associated with noma were estimated using logistic regression.
RESULTS
A total of 177 clusters, 3499 households and 7122 children were included. In this sample, 4239 (59.8%) were 0–5 years and 3692 (52.1%) were female. Simple gingivitis was identified in 3.1% (n=181; 95% CI 2.6 to 3.8), acute necrotising gingivitis in 0.1% (n=10; CI 0.1 to 0.3) and oedema in 0.05% (n=3; CI 0.02 to 0.2). No cases of late-stage noma were detected. Multivariable analysis in the group aged 0–5 years showed having a well as the drinking water source (adjusted odds ratio (aOR) 2.1; CI 1.2 to 3.6) and being aged 3–5 years (aOR 3.9; CI 2.1 to 7.8) was associated with being a noma case. In 6–15 year olds, being male (aOR 1.5; CI 1.0 to 2.2) was associated with being a noma case and preparing pap once or more per week (aOR 0.4; CI 0.2 to 0.8) was associated with not having noma. We estimated that 129120 (CI 105294 to 1 52 947) individuals <15 years of age would have any stage of noma at the time of the survey within the two states. Most of these cases (93%; n=120 082) would be children with simple gingivitis.
CONCLUSIONS
Our study identified a high prevalence of children at risk of developing advanced noma. This disease is important but neglected and therefore merits inclusion in the WHO neglected tropical diseases list.
Journal Article > ResearchFull Text
PLOS Med. 2017 October 23; Volume 14 (Issue 10); DOI:10.1371/journal.pmed.1002411
Keitel K, Kagoro F, Samaka J, Masimba J, Said Z, et al.
PLOS Med. 2017 October 23; Volume 14 (Issue 10); DOI:10.1371/journal.pmed.1002411
The management of childhood infections remains inadequate in resource-limited countries, resulting in high mortality and irrational use of antimicrobials. Current disease management tools, such as the Integrated Management of Childhood Illness (IMCI) algorithm, rely solely on clinical signs and have not made use of available point-of-care tests (POCTs) that can help to identify children with severe infections and children in need of antibiotic treatment. e-POCT is a novel electronic algorithm based on current evidence; it guides clinicians through the entire consultation and recommends treatment based on a few clinical signs and POCT results, some performed in all patients (malaria rapid diagnostic test, hemoglobin, oximeter) and others in selected subgroups only (C-reactive protein, procalcitonin, glucometer). The objective of this trial was to determine whether the clinical outcome of febrile children managed by the e-POCT tool was non-inferior to that of febrile children managed by a validated electronic algorithm derived from IMCI (ALMANACH), while reducing the proportion with antibiotic prescription.
Journal Article > ResearchFull Text
PLOS One. 2017 September 6; Volume 12 (Issue 9); DOI:10.1371/journal.pone.0183656
Rick F, Niyibizi AA, Shroufi A, Onami K, Steele SJ, et al.
PLOS One. 2017 September 6; Volume 12 (Issue 9); DOI:10.1371/journal.pone.0183656
Cryptococcal meningitis is one of the leading causes of death among people with HIV in Africa, primarily due to delayed presentation, poor availability and high cost of treatment. Routine cryptococcal antigen (CrAg) screening of patients with a CD4 count less than 100 cells/mm3, followed by pre-emptive therapy if positive, might reduce mortality in high prevalence settings. Using the cryptococcal antigen (CrAg) lateral flow assay (LFA), screening is possible at the point of care (POC). However, critical shortages of health staff may limit adoption. This study investigates the feasibility of lay counsellors conducting CrAg LFA screening in rural primary care clinics in Lesotho.
Journal Article > ResearchFull Text
Parasit Vectors. 2010 August 11; Volume 3 (Issue 1); DOI:10.1186/1756-3305-3-70
Bhullar N, Maikere J, Grais RF
Parasit Vectors. 2010 August 11; Volume 3 (Issue 1); DOI:10.1186/1756-3305-3-70
ABSTRACT: BACKGROUND: The World Health Organization (WHO) Global Program to Eliminate Lymphatic Filariasis relies on mass drug administration (MDA) of two drugs annually for 4 to 6 years. The goal is to reduce the reservoir of microfilariae in the blood to a level insufficient to maintain transmission by the mosquito vector. In 2008, the international medical aid organization Medecins Sans Frontieres (MSF) performed the first round of a MDA in the high-burden area of Asmat district, in Papua, Indonesia. We report the challenges faced in this MDA on a remote Indonesian island and propose solutions to overcome these hurdles in similar future contexts. RESULTS: During the MDA, we encountered difficult challenges in accessing as well as persuading the patient population to take the antifilarial drugs. Health promotion activities supporting treatment need to be adapted and repetitive, with adequate time and resources allocated for accessing and communicating with local, seminomadic populations. Distribution of bednets resulted in an increase in MDA coverage, but it was still below the 80-85% target. CONCLUSIONS: MDA for lymphatic filariasis is how the WHO has planned to eliminate the disease from endemic areas. Our programmatic experience will hopefully help inform future campaign planning in difficult-to-access, high-burden areas of the world to achieve target MDA coverage for elimination of lymphatic filariasis.
Journal Article > CommentaryFull Text
PLoS Negl Trop Dis. 2019 July 25 (Issue 7)
Azman AS, Ciglenecki I, Wamala JF, Lynch JA, Aggarwal R, et al.
PLoS Negl Trop Dis. 2019 July 25 (Issue 7)
Conference Material > Abstract
Langendorf C
Epicentre Scientific Day Paris 2023. 2023 June 8
BACKGROUND
Patients with advanced HIV disease (AHD), defined as WHO clinical stage 3 or 4 and/or CD4<200, have a high risk of death. One common cause of death is invasive bacterial infection (IBI, i.e., septicemia or meningitis). The global increase of antibiotic resistance threatens current treatments against bacterial infections. This study aims to describe the burden of IBI among patients with AHD to guide empirical treatment protocols.
METHODS
This is a prospective, descriptive study implemented at Kabinda General Hospital in Kinshasa, Democratic Republic of Congo (DRC). All patients with AHD and a blood or cerebrospinal fluid (CSF) culture collected because of: 1) fever/hypothermia and/or signs of shock, on admission or during hospitalization, and/or 2) previous exposure to care (<30 days), were eligible to participate. Clinical and bacteriological data were collected. An IBI was defined as a positive blood or CSF culture, and then categorized as: 1) community-acquired or healthcare-associated, if occurring =48 hours since hospitalization, and contingent on previous exposure to care (<30 days), or 2) hospital-acquired, if occurring >48 hours after hospitalization.
RESULTS
From August 2021 to July 2022, we included 997 patients, corresponding to 1198 hospitalizations with =1 blood and/or CSF culture. The proportions of community-acquired, healthcare-associated, and hospital-acquired IBI among hospitalizations were 5.9% (71/1198), 9.2% (110/1198), and 3.5% (42/1198), respectively. The main bacterial agents responsible for community-acquired and healthcare-associated IBI were non-Typhi Salmonella followed by Gram-positive Cocci, while K. pneumoniae was most common in hospital-acquired IBI. The levels of antibiotic susceptibility among Enterobacterales were similar between community-acquired and healthcare-associated IBI, with low susceptibility to ceftriaxone and ciprofloxacin, but high susceptibility to carbapenems and azithromycin.
CONCLUSION
We confirmed alarming levels of antibiotic resistance among patients with ADH in the DRC. Discussions are ongoing to translate results into practice, in particular to target broad spectrum empirical antibiotics.
KEY MESSAGE
Invasive bacterial infections among hospitalized patients with advanced HIV in Kinshasa showed high levels of antibiotic resistance regardless of their recent, previous exposure to care.
This abstract is not to be quoted for publication.
Patients with advanced HIV disease (AHD), defined as WHO clinical stage 3 or 4 and/or CD4<200, have a high risk of death. One common cause of death is invasive bacterial infection (IBI, i.e., septicemia or meningitis). The global increase of antibiotic resistance threatens current treatments against bacterial infections. This study aims to describe the burden of IBI among patients with AHD to guide empirical treatment protocols.
METHODS
This is a prospective, descriptive study implemented at Kabinda General Hospital in Kinshasa, Democratic Republic of Congo (DRC). All patients with AHD and a blood or cerebrospinal fluid (CSF) culture collected because of: 1) fever/hypothermia and/or signs of shock, on admission or during hospitalization, and/or 2) previous exposure to care (<30 days), were eligible to participate. Clinical and bacteriological data were collected. An IBI was defined as a positive blood or CSF culture, and then categorized as: 1) community-acquired or healthcare-associated, if occurring =48 hours since hospitalization, and contingent on previous exposure to care (<30 days), or 2) hospital-acquired, if occurring >48 hours after hospitalization.
RESULTS
From August 2021 to July 2022, we included 997 patients, corresponding to 1198 hospitalizations with =1 blood and/or CSF culture. The proportions of community-acquired, healthcare-associated, and hospital-acquired IBI among hospitalizations were 5.9% (71/1198), 9.2% (110/1198), and 3.5% (42/1198), respectively. The main bacterial agents responsible for community-acquired and healthcare-associated IBI were non-Typhi Salmonella followed by Gram-positive Cocci, while K. pneumoniae was most common in hospital-acquired IBI. The levels of antibiotic susceptibility among Enterobacterales were similar between community-acquired and healthcare-associated IBI, with low susceptibility to ceftriaxone and ciprofloxacin, but high susceptibility to carbapenems and azithromycin.
CONCLUSION
We confirmed alarming levels of antibiotic resistance among patients with ADH in the DRC. Discussions are ongoing to translate results into practice, in particular to target broad spectrum empirical antibiotics.
KEY MESSAGE
Invasive bacterial infections among hospitalized patients with advanced HIV in Kinshasa showed high levels of antibiotic resistance regardless of their recent, previous exposure to care.
This abstract is not to be quoted for publication.