Alex Odoom

Mr. Alex Odoom

Department of Medical Microbiogy, UGMS, University of Ghana, Accra, Greater Accra, Ghana
orcid

Research Focus & Metrics

Academic Career Length

4Years (2023-Present)

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

Representative Publications

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17 August 2023 in Antibiotics
Verified
Journal Article
Open access
PDF file
AOAbdul-Halim Osman
Abdul-Halim Osman
Fleischer C. N. KoteyFleischer C. N. Kotey
Fleischer C. N. Kotey
AOAlex Odoom
Alex Odoom
SDSamuel Darkwah
Samuel Darkwah
RYRaphael K. Yeboah
Raphael K. Yeboah
EDEric Donkor
Eric Donkor
The growing threat of antibiotic resistance is a significant global health challenge that has intensified in recent years. The burden of antibiotic resistance on public health is augmented due to its multifaceted nature, as well as the slow-paced and limited development of new antibiotics. The threat posed by resistance is now existential in phage therapy, which had long been touted as a promising replacement for antibiotics. Consequently, it is imperative to explore the potential of combination therapies involving antibiotics and phages as a feasible alternative for treating infections with multidrug-resistant bacteria. Although either bacteriophage or antibiotics can potentially treat bacterial infections, they are each fraught with resistance. Combination therapies, however, yielded positive outcomes in most cases; nonetheless, a few combinations did not show any benefit. Combination therapies comprising the synergistic activity of phages and antibiotics and combinations of phages with other treatments such as probiotics hold promise in the treatment of drug-resistant bacterial infections.

17 July 2024 in Antibiotics
Verified
Journal Article
Open access
PDF file
EDEric Donkor
Eric Donkor
AOAlex Odoom
Alex Odoom
AOAbdul-Halim Osman
Abdul-Halim Osman
SDSamuel Darkwah
Samuel Darkwah
Fleischer C. N. KoteyFleischer C. N. Kotey
Fleischer C. N. Kotey
Background: Antimicrobial resistance (AMR) poses a global health threat, with lower-middle-income countries bearing a disproportionate burden. Surveillance of AMR under a One Health framework is needed to elucidate the associations among clinical, animal, and environmental AMR. This review aimed to describe the state of AMR in Ghana, focusing on One Health. Method: This review utilized the PRISMA guidelines and major databases to systematically search and analyze AMR in Ghana published from 1 January 2014 to 1 May 2023. Results: Out of the 48 articles that met the inclusion criteria, 28 studies were conducted on humans, 14 studies involved animals, and 6 studies focused on the environment. A total of 48 different pathogens were identified across the human, animal, and environmental sectors, with the most common being Escherichia coli (67%, n = 32), Klebsiella spp. (52%, n = 25), Pseudomonas spp. (40%, n = 19), and Salmonella spp. (38%, n = 18). Generally, a high prevalence of antibiotic resistance was observed among various bacterial species across the sectors. These bacteria exhibited resistance to commonly used antibiotics, with resistance to ampicillin and tetracycline exceeding 80%, and multidrug resistance (MDR) ranging from 17.6% in Shigella spp. to 100% in Acinetobacter spp. Conclusion: This review reaffirms the significant challenge of AMR in Ghana, with a high prevalence observed in the human, animal, and environmental sectors. Key pathogens (e.g., Staphylococcus aureus and Escherichia coli) found across the sectors emphasize the urgent need for a One Health approach to tackle AMR in Ghana.

14 April 2025 in Infectious Disease Reports
Verified
Journal Article
Open access
PDF file
RARachel Ama Adadziwa Akorful
Rachel Ama Adadziwa Akorful
AOAlex Odoom
Alex Odoom
AAAaron Awere-Duodu
Aaron Awere-Duodu
EDEric Donkor
Eric Donkor
Background: Clostridioides difficile infection (CDI) is a major cause of healthcare-associated infections globally. Understanding variations in CDI incidence and outcomes across settings, populations, and regions is important for guiding prevention strategies. Aim: The aim of this study was to determine the global epidemiology of CDI to better understand disease burden across settings and geographic regions. Methods: Relevant publications were identified through searches of major databases, including PubMed, Scopus, and Web of Science, published from 1 January 2016 through 24 July 2024. Random effects models were used to pool estimates, and 95% confidence intervals (CIs) were calculated. Results: A total of 59 studies, representing 24 countries across North America, Europe, the Asia–Pacific region, Latin America, and the Middle East, met the inclusion criteria. The incidence of CDI was highest in hospital-onset healthcare facility settings, with 5.31 cases/1000 admissions (95% CI 3.76–7.12) and 5.00 cases/10,000 patient-days (95% CI 3.96–6.15). Long-term care facilities reported 44.24 cases/10,000 patient-days (95% CI 39.57–49.17). Pediatric populations faced a greater risk, with 4.52 cases/1000 admissions (95% CI 0.55–12.17), than adults did at 2.13 (95% CI 1.69–2.61). Recurrence rates were highest for community-acquired CDI at 16.22%. The death rates for the CDI cases tracked for 30 days and of unspecified duration were 8.32% and 16.05%, respectively. Conclusions: This comprehensive review identified healthcare facilities, long-term care, pediatric populations, and North America as disproportionately burdened. This finding provides guidance on priority areas and populations for targeted prevention through antimicrobial stewardship, infection control, and surveillance.

1 January 2024 in Environmental Health Insights
Verified
Journal Article
Open access
AOAbdul-Halim Osman
Abdul-Halim Osman
SDSamuel Darkwah
Samuel Darkwah
Fleischer C. N. KoteyFleischer C. N. Kotey
Fleischer C. N. Kotey
AOAlex Odoom
Alex Odoom
PHPrince Hotor
Prince Hotor
EDEric Donkor
Eric Donkor
Background: Nosocomial pathogens are known to exacerbate morbidity and mortality in contemporary critical healthcare. Hospital fomites, which include inanimate surfaces, have been identified as “breeding grounds” for pathogens that cause nosocomial infections. This systematic review aimed to deliver incisive insights on nosocomial pathogens in intensive care units (ICUs) and the role of fomites as potential reservoirs for their transmission. Method: An extensive exploration of electronic databases, including PubMed and Scopus, from 1990 to 2023, was carried out between 25th and 29th May 2023, per standard PRISMA guidelines. Information were extracted from articles that reported on fomites in the ICU. Studies that did not quantitatively report the fomite contamination, and those that exclusively took samples from patients in the ICU were excluded from the analysis. Results: About 40% of the total samples collected on fomites from all the studies yielded microbial growth, with species of Staphylococcus being the most predominant. Other prevalent microbes were Acinetobacter baumannii, Escherichia coli, Klebsiella pneumoniae, Candida spp., Enterococcus sp., and Enterobacter sp. The neonatal intensive care unit (NICU) had the highest proportion of contaminated fomites. Among known fomites, the sphygmomanometer exhibited a 100% detection rate of nosocomial pathogens. This included E. aerogenes, Staphylococcus aureus, coagulase-negative Staphylococci (CoNS), E. coli, and K. pneumoniae. Multidrug-resistant (MDR) bacteria, such as methicillin-resistant S. aureus (MRSA), vancomycin-resistant Enterococci (VRE), extended-spectrum beta-lactamase (ESBL)-producing E. coli, and MDR Pseudomonas aeruginosa were commonly isolated on fomites in the ICUs. Conclusion: Many fomites that are readily used in patient care in the ICU harbour nosocomial pathogens. The most common fomite appeared to be mobile phones, sphygmomanometers, and stethoscopes, with Staphylococcus being the most common contaminant. Consequently, the need for rigorous disinfection and sterilization protocols on fomites in the ICU cannot be overemphasized. Additionally, heightened awareness on the subject among health professionals is crucial to mitigating the risk and burden of nosocomial infections caused by drug-resistant bacteria.

9 July 2025 in Health Science Reports
Verified
Journal Article
Open access
AOAlex Odoom
Alex Odoom
EDEric Donkor
Eric Donkor
Background and Aim: Healthcare‐acquired infections (HAIs) are a major cause of morbidity and mortality among critically ill adult patients admitted to intensive care units (ICUs) with underlying health conditions. Precisely estimating the burden of HAIs in adult ICUs is important for guiding prevention efforts and assessing the impact of intervention programs. This review aims to synthesize the available epidemiological data on the prevalence of different HAI types in adult ICUs. Methods: A systematic search was conducted via the PubMed, Scopus, and Web of Science databases to identify prevalence studies of HAIs published up to August 14, 2024, involving adult ICU patients. Pooled prevalence estimates and 95% confidence intervals were calculated using random effects models. Heterogeneity was assessed using the I 2 statistic. Results: A total of 21 studies involving 15,966 patients with 4288 adult ICU HAI cases were included in the meta‐analysis. Pneumonia, whether ventilator‐associated (VAP) or non‐VAP, demonstrated the highest prevalence. The pooled all‐cause pneumonia and VAP prevalence were 51.0% (95% CI 40.0–63.0%, I 2 = 98%, p < 0.01) and 54.0% (95% CI 31.0–76.0%, I 2 = 98%, p < 0.01), respectively. The prevalence of bloodstream infections was 34.0% (95% CI 25.0–42.0%, I 2 = 98%, p < 0.01), whereas those of urinary tract infections and surgical site infections were 26.0% (95% CI 17.0–35.0%, I 2 = 98%, p < 0.01) and 12.0% (95% CI 7.0–17.0%, I 2 = 92%, p < 0.01), respectively. Patient risk factors included chronic kidney disease (52%), malignancy (45%), immunosuppression (40%), and diabetes (35%). No significant differences in risk between sexes emerged. Invasive procedures, especially tracheostomy (74%), carried the highest risk. Conclusion: This review revealed that BSIs, UTIs, pneumonia, and VAP constitute the most common HAIs in adults. Invasive devices, surgery, antimicrobial exposure, and underlying patient health conditions increase the risk. Targeting reductions in device usage durations and optimizing antibiotic stewardship may help lower infection rates in intensive care units.

4 December 2024 in Microorganisms
Verified
Journal Article
Open access
PDF file
AAAnastasia Asantewaa
Anastasia Asantewaa
AOAlex Odoom
Alex Odoom
GOGodfred Owusu-Okyere
Godfred Owusu-Okyere
EDEric Donkor
Eric Donkor
Cholera is linked to penury, making low- and middle-income countries (LMICs) particularly vulnerable to outbreaks. In this systematic review, we analyzed the drivers contributing to these outbreaks, focusing on the epidemiology of cholera in LMICs. This review followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines and was registered in PROSPERO (ID: CRD42024591613). We searched PubMed, Scopus, Web of Science, and Google Scholar to include studies on cholera outbreaks that occurred in LMICs from 1 January 2014 to 21 September 2024. Studies on outbreaks outside LMICs and focusing on sporadic cases were excluded. The risk of bias among included studies was assessed using a modified Downes et al. appraisal tool. Thematic analysis was used to synthesize the qualitative data, and meta-analyses to estimate the pooled prevalence. From 1662 records, 95 studies met inclusion criteria, primarily documenting outbreaks in Africa (74%) and Asia (26%). Contaminated water was the main route of disease transmission. The pooled fatality prevalence was 1.3% (95% CI: 1.1–1.6), and the detection rate among suspected cases was 57.8% (95% CI: 49.2–66.4). Vibrio cholerae O1 was the dominant serogroup while Ogawa was the dominant serotype. All studies reporting biotypes indicated El Tor. Although the isolates were 100% susceptible to ofloxacin, levofloxacin, norfloxacin, cefuroxime, and doxycycline, they were also fully resistant to amikacin, sulfamethoxazole, trimethoprim, and furazolidone. The persistence of cholera outbreaks in destitute areas with limited access to clean water and sanitation emphasizes the need for socioeconomic improvements, infrastructure development, and ongoing surveillance to support timely responses and achieve long-term prevention.