Leonidas Georgalis

ORCID: 0000-0003-4261-0299
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About
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Research Areas
  • Listeria monocytogenes in Food Safety
  • Microbial Inactivation Methods
  • Pneumonia and Respiratory Infections
  • Emergency and Acute Care Studies
  • Meat and Animal Product Quality
  • Salmonella and Campylobacter epidemiology
  • Vector-borne infectious diseases
  • Urinary Tract Infections Management
  • HIV/AIDS Research and Interventions
  • Bacterial Infections and Vaccines
  • HIV Research and Treatment
  • HIV/AIDS drug development and treatment
  • Respiratory viral infections research
  • Chemistry and Chemical Engineering
  • Global Cancer Incidence and Screening
  • Enterobacteriaceae and Cronobacter Research
  • Antibiotic Use and Resistance
  • Child Nutrition and Water Access
  • Viral gastroenteritis research and epidemiology
  • Spectroscopy Techniques in Biomedical and Chemical Research
  • Pharmaceutical and Antibiotic Environmental Impacts
  • Vector-Borne Animal Diseases
  • Dermatological diseases and infestations
  • Bacteriophages and microbial interactions
  • Antibiotic Resistance in Bacteria

National Public Health Organization
2024

Universidad Politécnica de Cartagena
2022-2023

European Centre for Disease Prevention and Control
2016-2022

Centro Nacional de Microbiologia
2021-2022

Instituto de Salud Carlos III
2016-2022

Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública
2022

KU Leuven
2020

University of Crete
2012-2016

Institut Català d'Oncologia
2015

Institut d'Investigació Biomédica de Bellvitge
2015

We analysed hepatitis A (HepA) notifications and hospitalisations in Italy, the Netherlands, Norway, Spain, Sweden for available periods between 1995 2014. aimed to investigate whether decreasing HepA incidence is associated with increasing age at infection worsening presentation identify groups risk of severe disease.We performed a retrospective cohort study including 36 734 notified 849 hospitalised patients. used negative binomial regressions over time: i) trends hospitalisation...

10.1016/j.ijid.2022.01.053 article EN cc-by-nc-nd International Journal of Infectious Diseases 2022-02-05

Journal Article Murine typhus in Cyprus: a 9-year survey Get access Anna Psaroulaki, Psaroulaki * aLaboratory of Clinical Bacteriology, Parasitology, Zoonoses and Geographical Medicine, Medical School, University Crete, Heraklion – Greece *Corresponding author. Tel.: +30 2810 394743; fax: 394740. E-mail address: annapsa@med.uoc.gr, surreydimos@hotmail.com (A. Psaroulaki). Search for other works by this author on: Oxford Academic PubMed Google Scholar Christos Christou, Christou bPublic...

10.1016/j.trstmh.2012.02.010 article EN Transactions of the Royal Society of Tropical Medicine and Hygiene 2012-04-25

Human papillomavirus (HPV) vaccination within a nonorganized setting creates poor cost-effectiveness scenario. However, framed an organized screening including primary HPV DNA testing with lengthening intervals may provide the best health value for invested money. To compare effectiveness and of different cervical cancer (CC) prevention strategies, current status new proposed practices, to inform decision-makers in Spain, Markov model was developed simulate natural history CC. Outcomes...

10.1097/cej.0000000000000202 article EN European Journal of Cancer Prevention 2015-09-16

Viruses of HIV-1-infected individuals whose transmission is related group phylogenetically in clusters (TCs). The study the phylogenetic relations these viruses and factors associated with essential to analyze HIV-1 epidemic. In this study, we examine role TCs epidemiology infection Galicia Basque County, two regions northern Spain. A total 1,158 patients from both new diagnoses (NDs) 2013-2018 were included study. Partial pol sequences analyzed by approximately maximum-likelihood FastTree...

10.3389/fmicb.2022.782609 article EN cc-by Frontiers in Microbiology 2022-03-31

The deviations from log-linearity that are often observed in bacterial survivor curves can be explained using different arguments, both biological and experimental. In this study, we used Bacillus subtilis as a model organism to demonstrate the generally accepted vitalistic arguments (initial heterogeneities stress resistance of cells population) may fail describe microbial inactivation some situations. sense, showed how dynamic acclimation during an isothermal treatment provides alternative...

10.1016/j.foodres.2023.113385 article EN cc-by-nc-nd Food Research International 2023-08-18

In this article, the thermal inactivation of two Salmonella strains (Salmonella Enteritidis CECT4300 and Senftenberg CECT4565) was studied under both isothermal dynamic conditions. We observed large differences between these strains, with S. being much more resistant than Enteritidis. Under conditions, had non-linear survivor curves, whereas response log-linear. Therefore, weibullian models were used to describe Senftenberg, Mafart model suitable one. For Enteritidis, Bigelow (log-linear)...

10.1016/j.foodres.2022.111477 article EN cc-by-nc-nd Food Research International 2022-06-07

Eleven Salmonella spp. isolates with the antigenic type 11:z 41 :e,n,z 15 - not referred to in 9th edition of White-Kauffman–Le Minor Scheme were identified at National Reference Laboratory for Greece. Their pulsed-field gel electrophoresis profiles indistinguishable. No apparent epidemiological link has yet been identified; results a case–case study are pending.

10.2807/1560-7917.es.2016.21.25.30265 article EN cc-by Eurosurveillance 2016-06-23

Background: waterborne disease outbreaks (WGDOs) following the contamination of drinking water remain a public health concern. Methods: The current study aims to assess occurrence and identify gaps in notification investigation WGDOs Greece. Data for 2004–2023 were retrieved summarized. Results: Thirty-five with 6128 recorded cases identified. median time from date onset first reporting was 7 days (range: 1–26 days). Authorities informed by care services thirty (85.7%) media five (14.3%)....

10.3390/ijerph21060701 article EN International Journal of Environmental Research and Public Health 2024-05-30

Unsafe food poses global health threats, potentially endangering consumers. The great majority of people will experience a food-borne disease at some point in their lives. Ready-to-eat (RTE) is the one intended by producer or manufacturer for direct human consumption without need cooking other processing effective to eliminate reduce concentration pathogenic microorganisms. Prepared foods are often complex and may contain multiple components that make them vulnerable growth Among all...

10.2903/j.efsa.2020.e181103 article EN cc-by-nd EFSA Journal 2020-11-01

ABSTRACT Viruses of HIV-1-infected individuals whose transmission is related group phylogenetically in clusters (TCs). The study the phylogenetic relations these viruses and factors associated with essential to analyze HIV-1 epidemic. In this study, we examine role TCs epidemiology infection Galicia Basque County, two regions Northern Spain. A total 1158 newly HIV-1-diagnosed patients (NDs) from both diagnosed 2013-2018 were included study. Partial pol sequences analyzed by...

10.1101/2021.09.28.21264185 preprint EN medRxiv (Cold Spring Harbor Laboratory) 2021-09-29
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