Daniel Vita

Daniel Vita


Research Focus & Metrics

Academic Career Length

6Years (2021-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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10 November 2021 in Diagnostics
Verified
Journal Article
Open access
PDF file
BTBieke Tack
Bieke Tack
DVDaniel Vita
Daniel Vita
TMThomas Nsema Mbaki
Thomas Nsema Mbaki
OLOctavie Lunguya
Octavie Lunguya
JTJaan Toelen
Jaan Toelen
JJJan Jacobs
Jan Jacobs
To improve the early recognition of danger signs in children with severe febrile illness in low resource settings, WHO promotes automated respiratory rate (RR) counting, but its performance is unknown in this population. Therefore, we prospectively evaluated the field performance of automated point-of-care plethysmography-based RR counting in hospitalized children with severe febrile illness ( 0.05). Children without fast breathing were mostly correctly classified (negative percent agreement: 98.3%). In conclusion, in the present setting the automated RR counter performed insufficiently to facilitate the early recognition of danger signs in children with severe febrile illness, given wide limits of agreement and a too low positive percent agreement.

6 December 2023 in The American Journal of Tropical Medicine and Hygiene
Verified
Journal Article
Open access
PDF file
BTBieke Tack
Bieke Tack
DVDaniel Vita
Daniel Vita
ENEmmanuel Ntangu
Emmanuel Ntangu
JNJaphet Ngina
Japhet Ngina
PMPathy Mukoko
Pathy Mukoko
JJJan Jacobs
Jan Jacobs
: Severe bacterial infections in children need prompt, appropriate antibiotic treatment. We report challenges observed within a prospective, cohort study on antibiotic efficacy in non-typhi Salmonella bloodstream infection (NCT04850677) in Kisantu district hospital (Democratic Republic of Congo). Children (aged > 28 days to < 5 years) admitted with suspected bloodstream infection (August 1, 2021 through July 31, 2022) were enrolled and followed until day 3 or discharge for non-typhi Salmonella patients. Antibiotics were administered to 98.4% (1,838/1,867) of children, accounting for 2,296 antibiotic regimens (95.7% intravenous, 4.3% oral). Only 78.3% and 61.8% of children were, respectively, prescribed and administered antibiotics on the admission day. At least one dose was not administered in 3.6% of children, mostly because of mismatch of the four times daily cefotaxime schedule with the twice-daily administration rounds. Inappropriate intravenous administration practices included multidose use, air-venting, and direct injection instead of perfusion. There was inaccurate aliquoting in 18.0% (32/178) of intravenous ciprofloxacin regimens, and thus administered doses were > 16% below the intended dose. Dosing accuracy of oral suspensions was impaired by lack of instructions for reconstitution, volume indicators, and/or dosing devices. Adult-dose tablets were split without/beyond scoring lines in 84.4% (27/32) of tablets. Poor availability and affordability of age-appropriate oral formulations contributed to low proportions of intravenous-to-oral switch (33.3% (79/237) of non-typhi Salmonella patients). Other quality issues included poor packaging, nonhomogeneous suspensions, and unsafe water for reconstitution. In conclusion, poor antibiotic products (no age-appropriate formulations, poor quality and access), processes (delayed prescription/administration, missed doses), and practices (inaccurate doses, [bio]safety risks) must be urgently addressed to improve pediatric antibiotic treatment.

18 March 2022 in Diagnostics
Verified
Journal Article
Open access
PDF file
BTBieke Tack
Bieke Tack
DVDaniel Vita
Daniel Vita
IMIrène Mansosa
Irène Mansosa
TMThomas Nsema Mbaki
Thomas Nsema Mbaki
NWNaomie Wasolua
Naomie Wasolua
JJJan Jacobs
Jan Jacobs
As part of a field study (NCT04473768) in children presenting with severe febrile illness to Kisantu hospital (DR Congo), we retrospectively compiled user experiences (not performance) with handheld diagnostic devices assisting triage: tympanic thermometer, pulse oximeter (measuring heart rate, respiratory rate and oxygen saturation), hemoglobinometer and glucometer. Guidance documents for product selection were generic and scattered. Stock rupture, market withdrawal and unaffordable prices interfered with procurement. Challenges at implementation included environmental temperature, capillary blood sampling (antisepsis, order of multiple tests, filling microcuvettes and glucose strips), calibration (environmental temperature, cold chain) and liability-oriented communication with a manufacturer. Instructions for use were readable and contained symbol keys; two devices had printed French-language instructions. Shortcomings were poor integration of figures with text and distinct procedures for the oximeter and its sensor. Usability interview revealed appreciations for quick results, visibility of the display and memory function (three devices) but also problems of capillary blood sample transfer, cleaning, too long of a time-to-results (respiratory rate) and size, fitting and disposal of thermometer probes. Pictorial error messages were preferred over alphanumeric error codes but interpretation of symbols was poor. Alarm sounds of the oximeter caused unrest in children and caretakers perceived the device as associated with poor prognosis.

6 March 2026 in Antibiotics
Verified
Journal Article
Open access
PDF file
Jules MbuyambaJules Mbuyamba
Jules Mbuyamba
GTGAELLE NKOJI TUNDA
GAELLE NKOJI TUNDA
DVDaniel Vita
Daniel Vita
LNLaurence NGARA
Laurence NGARA
EBEdmonde Bonebe
Edmonde Bonebe
OLOctavie Lunguya
Octavie Lunguya
Background: Antimicrobial resistance (AMR), particularly due to extended-spectrum beta-lactamases (ESBL), is a growing threat to public health in sub-Saharan Africa. This study investigates the prevalence, epidemiological characteristics, resistance patterns and resistance dynamic over time of ESBL-producing non-typhoidal Salmonella (NTS) bacteremia in Kisantu, Democratic Republic of Congo (DRC), from 2019 to 2022. Methods: A retrospective observational study used routine bloodstream infection data from the AMR network at Saint Luc Hospital in Kisantu. Blood cultures from suspected bacteremia cases were processed using standard microbiological techniques. Bacterial identification relied on biochemical reactions. Antibiotic susceptibility testing and ESBL-producing NTS detection were performed by disk diffusion following Clinical and Laboratory Standards Institute guidelines. Associations between ESBL production and patient characteristics (age, sex) were assessed using Pearson’s Chi-square test, and annual temporal trends in ESBL-producing NTS from 2019 to 2022 were analyzed by logistic regression using 2019 as the reference year. Results: Of the 19,430 blood cultures, 1681 NTS isolates were identified, and 1568 of these were screened for ESBL. ESBL prevalence was significantly associated with age (p = 0.007), peaking in children under 2 years, but not with sex (p = 0.570). Compared with 2019, the likelihood of isolating ESBL-producing NTS increased markedly through 2022, with adjusted probabilities rising from 58% to 87%, reflecting a strong upward temporal trend. High levels of extensively drug-resistant (94.1%) were observed. No carbapenem resistance was detected. Conclusions: ESBL-producing NTS bacteremia is rising in Kisantu, DRC, mainly affecting children under 2 years. Rising resistance to key antibiotics limits treatment options and highlights the need for strengthened AMR surveillance, optimized antibiotic use, and vaccination strategies.

19 November 2025 in Preprints.org
Verified
Preprint
Open access
PDF file
Jules MbuyambaJules Mbuyamba
Jules Mbuyamba
GTGAELLE NKOJI TUNDA
GAELLE NKOJI TUNDA
DVDaniel Vita
Daniel Vita
LNLaurence NGARA
Laurence NGARA
EBEdmonde Bonebe
Edmonde Bonebe
OLOctavie Lunguya
Octavie Lunguya
Background: Antimicrobial resistance (AMR), particularly due to extended-spectrum beta-lactamases (ESBL), is a growing threat in sub-Saharan Africa. This study investigates the prevalence, epidemiological characteristics, resistance patterns and over time resistance dynamics of ESBL-producing non-typhoidal Salmonella (NTS) bacteremia in Kisantu, Democratic Republic of Congo (DRC), from 2019 to 2022. Methods: A retrospective observational study used routine bloodstream infection data from the AMR network at Saint Luc Hospital in Kisantu. Blood cultures from suspected bacteremia cases were processed using standard microbiological techniques. Bacterial identification relied on biochemical reactions. Antibiotic susceptibility testing and ESBL-NTS detection were performed by disk diffusion following Clinical and Laboratory Standards Institute guidelines. Quarterly temporal trends in ESBL-positive NTS were evaluated using logistic regression. Results: Of 19,430 blood cultures, 1,681 NTS isolates were identified, 1,568 were screened for ESBL. ESBL production was detected in 1,184 isolates (75.5%), mostly from children under 5 years (1,098/1,184; 92.7%), including nearly 72% under 24 months. ESBL prevalence increased significantly over time (β = 0.139, OR = 1.15, 95% CI: 1.11–1.19, p < 0.001), rising from 14.3% in Q (Quarter) 1 2019 to 95.3% in Q3 2022. High levels of extensively drug-resistant (94.1%) and pan-drug-resistant (6.3%) isolates were observed. No carbapenem resistance was detected, and azithromycin resistance remained low (6.4%). Conclusion: ESBL-producing NTS bacteremia is rising in Kisantu, RDC, manly affecting children under 5 years. Rising resistance to key antibiotics limits treatment options and highlights the need for strengthened AMR surveillance, optimized antibiotic use, and vaccination strategies.