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  1. Article ; Online: Characteristics of Polish travellers admitted at the University Centre of Maritime and Tropical Medicine in Poland, 2023.

    Korzeniewski, Krzysztof

    International maritime health

    2023  Volume 75, Issue 1, Page(s) 55–60

    Abstract: Background: After COVID-19 restrictions were lifted, people started to travel again. Each year, thousands of Poles travel internationally, and many travel to tropical or subtropical destinations in Asia, Africa or South America. The aim of this article ... ...

    Abstract Background: After COVID-19 restrictions were lifted, people started to travel again. Each year, thousands of Poles travel internationally, and many travel to tropical or subtropical destinations in Asia, Africa or South America. The aim of this article was to describe the characteristics of Polish travellers based on the information from a retrospective 12-month review of the medical records of Polish patients seeking pre-travel advice at the largest diagnostic and treatment travel medicine centre in Poland in 2023.
    Material and methods: The retrospective study was based on the analysis of medical records of 2,147 patients seeking pre-travel advice at the University Centre of Maritime and Tropical Medicine in Gdynia, Poland, between January and December 2023. The study focused on the analysis of the following patients' variables: age, sex, travel details (purpose of travel, length of travel, departure month, continents and countries to be visited). It also aimed to evaluate the range of prevention measures which were either recommended or administered to patients seeking pre-travel advice at the clinic (preventive vaccinations, chemoprophylaxis). In addition, it assessed the health status of the patients presenting at the travel medicine clinic; retrospective health assessments were based on the information from the interviews with the patients.
    Results: Patients who sought pre-travel advice were mostly aged 36-65 years (49.5%), they were travelling for tourism purposes (78.3%), for a maximum period of 4 weeks (79.0%), mostly in November (15.2%) or in January (14.9%). Most travellers planned to visit Asia (55.5%) or Africa (29.0%); mainly Thailand (21.5%), Vietnam (8.5%), Kenya (8.3%) or India (8.2%). The most frequently administered immunoprophylaxis included vaccinations against typhoid fever and hepatitis A. Other commonly recommended/prescribed prevention measures included: insect repellents (69.3%), sunscreen (58.3%), antimalarials (35.8%), antithrombotic drugs (32.6%), and antidiarrheal drugs (25.6%). The analysis of patient interviews demonstrated that 61.8% of the travellers consulted at the clinic had no pre-existing medical conditions, while 38.2% required the use of chronic medications, mainly for allergies (14.3%), thyroid disorders (13.6%), cardiovascular diseases (9.3%), or psychiatric disorders (5.5%).
    Conclusions: A large number of Polish travellers visit destinations where the risk of infectious and non-infectious diseases is high. Providing patients with professional advice during a pre-travel consultation will help protect against travel-associated health problems.
    Language English
    Publishing date 2023-05-03
    Publishing country Poland
    Document type Journal Article
    ZDB-ID 2032821-7
    ISSN 2081-3252 ; 1641-9251
    ISSN (online) 2081-3252
    ISSN 1641-9251
    DOI 10.5603/imh.99413
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: A cluster of cutaneous larva migrans in travellers returning from Zanzibar.

    Korzeniewski, Krzysztof

    Journal of travel medicine

    2021  Volume 29, Issue 1

    MeSH term(s) Humans ; Larva Migrans/diagnosis ; Tanzania ; Travel ; Tropical Climate
    Language English
    Publishing date 2021-09-03
    Publishing country England
    Document type Letter
    ZDB-ID 1212504-0
    ISSN 1708-8305 ; 1195-1982
    ISSN (online) 1708-8305
    ISSN 1195-1982
    DOI 10.1093/jtm/taab136
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  3. Article ; Online: Extreme traveler.

    Korzeniewski, Krzysztof

    International maritime health

    2021  Volume 71, Issue 4, Page(s) 281–290

    Abstract: Although they may pose a serious health risk or may even turn out to be life-threatening, extreme sports, i.e. high-risk physical activities of varied difficulty, are growing in popularity among international travelers in recent years. Extreme sports ... ...

    Abstract Although they may pose a serious health risk or may even turn out to be life-threatening, extreme sports, i.e. high-risk physical activities of varied difficulty, are growing in popularity among international travelers in recent years. Extreme sports encompass a wide range of activities such as scuba diving, rafting, surfing, bungee jumping and mountaineering. It is not unusual for travelers to engage in extreme sports far off the beaten path, in destinations where environmental conditions are difficult and specialist healthcare is not easily available. Therefore, before taking the decision to engage in any form of adventurous activity, travelers should be encouraged to take certain precautionary measures. The most important are: identification of potential health risk factors related to travel or the activity itself, physical conditioning and fitness training prior to travel (depending on the type of activity) and prophylaxis (a travel health kit, mandatory and recommended vaccinations, a pre-travel consultation to assess a person's fitness to travel and identify any potential contraindications for certain types of adventure sports, a comprehensive travel insurance policy). The article focuses on popular extreme sports, common risk factors associated with extreme activities as well as the recommended prophylaxis and precautionary measures.
    MeSH term(s) Athletic Injuries/prevention & control ; Humans ; Physical Fitness ; Recreation ; Risk Factors ; Sports ; Travel Medicine
    Language English
    Publishing date 2021-01-04
    Publishing country Poland
    Document type Journal Article ; Review
    ZDB-ID 2032821-7
    ISSN 2081-3252 ; 1641-9251
    ISSN (online) 2081-3252
    ISSN 1641-9251
    DOI 10.5603/IMH.2020.0048
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Post-travel screening of symptomatic and asymptomatic travelers.

    Korzeniewski, Krzysztof

    International maritime health

    2020  Volume 71, Issue 2, Page(s) 129–139

    Abstract: Until last year, terrorism, economic instability, poverty and natural disasters were considered the major threats to humans globally. Infectious diseases were seen as a minor problem. This, however, changed in 2020 when the global COVID-19 pandemic broke ...

    Abstract Until last year, terrorism, economic instability, poverty and natural disasters were considered the major threats to humans globally. Infectious diseases were seen as a minor problem. This, however, changed in 2020 when the global COVID-19 pandemic broke out and a new danger emerged. The latest events generated a lot of discussion on health hazards associated with international tourism and uncontrolled spread of pathogens across the borders. The major health problems of travelers to developing countries with harsh environmental conditions and endemic infectious diseases include gastrointestinal disorders, dermatoses, respiratory infections and fevers of unknown origin. A medical interview by an experienced physician is the foundation of the post-travel screening process both in symptomatic and asymptomatic travelers; the interview should focus on identifying exposure to risk factors (endemic infectious diseases, failure to adopt disease prevention measures, consumption of food or water from unsafe sources, insect bites, animal bites, travelling in large groups, unsafe sex with casual partners). While physical examination (identification of abnormalities) and diagnostic tests (identification of pathogens) can be useful for detecting illnesses and asymptomatic infections as well as assessing the general health condition of a patient, including his immune system. The aim of the article is to provide information on the post-travel screening process in symptomatic and asymptomatic travelers who have returned from areas with harsh climate conditions and low sanitation standards.
    MeSH term(s) Betacoronavirus ; COVID-19 ; Communicable Disease Control/methods ; Communicable Diseases/diagnosis ; Communicable Diseases/epidemiology ; Coronavirus Infections/epidemiology ; Coronavirus Infections/prevention & control ; Developing Countries ; Humans ; Pandemics/prevention & control ; Pneumonia, Viral/epidemiology ; Pneumonia, Viral/prevention & control ; Risk Factors ; SARS-CoV-2 ; Travel-Related Illness
    Keywords covid19
    Language English
    Publishing date 2020-06-30
    Publishing country Poland
    Document type Journal Article ; Review
    ZDB-ID 2032821-7
    ISSN 2081-3252 ; 1641-9251
    ISSN (online) 2081-3252
    ISSN 1641-9251
    DOI 10.5603/IMH.2020.0023
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Eye diseases in travelers.

    Korzeniewski, Krzysztof

    International maritime health

    2020  Volume 71, Issue 1, Page(s) 78–84

    Abstract: Travelling has been growing in popularity over the last several decades. Eye diseases, e.g. decreased visual acuity, inflammatory or degenerative lesions, chronic diseases or eye trauma, affect all groups of travelers. The main risk factors contributing ... ...

    Abstract Travelling has been growing in popularity over the last several decades. Eye diseases, e.g. decreased visual acuity, inflammatory or degenerative lesions, chronic diseases or eye trauma, affect all groups of travelers. The main risk factors contributing to the manifestation or exacerbation of common ocular diseases include exposure to dry air (inside the airplane cabin or in air-conditioned hotel rooms), exposure to chlorinated or salty water (swimming/bathing in swimming pools or in the sea), and sudden changes in the weather conditions. In addition, travelers to tropical destinations are at risk of ocular diseases which are rarely seen in temperate climate, e.g. onchocerciasis, loiasis, gnatostomosis, African trypanosomosis, or trachoma. The most common condition of the eye seen in travelers is conjunctivitis; it may be either of cosmopolitan (bacterial or viral infections, allergic inflammation) or tropical etiology, e.g. arboviral infections (zika, chikungunya). Given the fact that a large proportion of the general population have decreased visual acuity and many of them wear contact lenses rather than glasses, keratitis has become a common health problem among travelers as well; the major risk factors in such cases include sleeping in contact lenses, prolonged exposure to air-conditioning, working with a computer or swimming/bathing in microbiologically contaminated water (e.g. Acanthoamoeba protozoa). Conditions affecting the cornea, conjunctiva or lens may also occur due to excessive exposure to solar radiation, especially if travelers wear glasses without a UV protection.
    MeSH term(s) Contact Lenses/adverse effects ; Eye Diseases/epidemiology ; Eye Diseases/etiology ; Humans ; Risk Factors ; Sunlight/adverse effects ; Swimming ; Travel
    Language English
    Publishing date 2020-03-24
    Publishing country Poland
    Document type Journal Article ; Review
    ZDB-ID 2032821-7
    ISSN 2081-3252 ; 1641-9251
    ISSN (online) 2081-3252
    ISSN 1641-9251
    DOI 10.5603/IMH.2020.0015
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Intestinal parasitic infections in officers of the Border Guard in East Poland.

    Korzeniewski, Krzysztof / Richert, Wanesa

    International maritime health

    2023  Volume 74, Issue 3, Page(s) 175–179

    Abstract: Background: Poland has experienced increased economic migration since 2021. Large waves of migrants, mostly from Asian and African countries, are trying to get into the European Union by crossing Poland's eastern border illegally. The influx of illegal ... ...

    Abstract Background: Poland has experienced increased economic migration since 2021. Large waves of migrants, mostly from Asian and African countries, are trying to get into the European Union by crossing Poland's eastern border illegally. The influx of illegal migrants into Poland is the result of a policy adopted by the Belarusian and Russian regimes that are trying to provoke another migrant crisis in Europe. In the opinion of some Polish politicians illegal migration contributes to the spread of parasitic diseases in our country as many migrants arriving into Poland carry intestinal parasites. The aim of this study was to assess the prevalence of infections with intestinal parasites in the Polish Border Guard officers safeguarding Poland's eastern borders.
    Materials and methods: Parasitological diagnostics was carried out between April and May 2023. The study involved 218 Polish Border Guard officers from the Podlaski Border Guard Unit (PBGU) and 209 officers from the Bug Border Guard Unit (BBGU), whose task is to patrol and safeguard Poland's border with Ukraine and Belarus. Faecal examinations were performed using three different light microscopy testing methods (direct smear, decantation, flotation) at the Department of Epidemiology and Tropical Medicine at the Military Institute of Medicine - National Research Institute, Warsaw, Poland.
    Results: Considered to be potentially pathogenic intestinal parasites were diagnosed in 20 out of 218 officers serving in the PBGU (8.7% infected with Blastocystis spp., 0.5% with Dientamoeba fragilis) and in 9 out of 209 officers serving in the BBGU (3.8% infected with Blastocystis spp., 0.5% with Dientamoeba fragilis). There were no infections with nematodes, cestodes or trematodes in the study participants. No correlation was found between a parasitic infection and the presence of diarrhoea or other gastrointestinal symptoms within 6 months prior to the study in both groups.
    Conclusions: Although Polish Border Guard officers deployed to the eastern border are exposed to difficult environmental conditions and have frequent contacts (either directly or indirectly) with migrants arriving from countries which report high incidence of parasitic infections, the rates of infections with potentially pathogenic protozoa in officers from the PBGU and BBGU are low and mainly attributable to pathogens which are widespread in the general Polish population. Low rates of parasitic infections in officers serving in the border zone suggest that the epidemiological situation of parasitic diseases in East Poland is satisfactory and that the disease prevention strategies (including the use of personal protection gear) implemented by the Polish medical services are effective.
    MeSH term(s) Humans ; Poland/epidemiology ; Intestinal Diseases, Parasitic/diagnosis ; Intestinal Diseases, Parasitic/epidemiology ; Intestinal Diseases, Parasitic/parasitology ; European Union ; Military Personnel ; Europe
    Language English
    Publishing date 2023-09-30
    Publishing country Poland
    Document type Journal Article
    ZDB-ID 2032821-7
    ISSN 2081-3252 ; 1641-9251
    ISSN (online) 2081-3252
    ISSN 1641-9251
    DOI 10.5603/imh.97185
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Asymptomatic Malaria Infections in the Time of COVID-19 Pandemic: Experience from the Central African Republic.

    Bylicka-Szczepanowska, Emilia / Korzeniewski, Krzysztof

    International journal of environmental research and public health

    2022  Volume 19, Issue 6

    Abstract: According to the latest World Health Organization malaria report, 95% of 241 million global malaria cases and 96% of 627,000 malaria deaths that were recorded in 2020 occurred in Africa. Compared to 2019, 14 million more cases and 69,000 more malaria ... ...

    Abstract According to the latest World Health Organization malaria report, 95% of 241 million global malaria cases and 96% of 627,000 malaria deaths that were recorded in 2020 occurred in Africa. Compared to 2019, 14 million more cases and 69,000 more malaria deaths were recorded, mainly because of disruptions to medical services during the COVID-19 pandemic. The aim of this study was to assess the prevalence of asymptomatic malaria cases in children and adults living in the Dzanga Sangha region in the Central African Republic (CAR) during the COVID-19 pandemic. Rapid immunochromatographic assays for the qualitative detection of
    MeSH term(s) Adolescent ; Adult ; COVID-19/epidemiology ; Central African Republic/epidemiology ; Child ; Child, Preschool ; Humans ; Infant ; Malaria/epidemiology ; Pandemics ; Plasmodium falciparum
    Language English
    Publishing date 2022-03-16
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2175195-X
    ISSN 1660-4601 ; 1661-7827
    ISSN (online) 1660-4601
    ISSN 1661-7827
    DOI 10.3390/ijerph19063544
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  8. Article ; Online: Marine creatures dangerous for divers in tropical waters.

    Krzyżak, Jarosław / Korzeniewski, Krzysztof

    International maritime health

    2022  Volume 72, Issue 4, Page(s) 283–292

    Abstract: Diving has been gaining in popularity in recent years with spectacular dive sites in tropical waters. Before anyone goes diving, they should learn about the risk factors associated with the exposure to hyperbaric conditions and also the risks from ... ...

    Abstract Diving has been gaining in popularity in recent years with spectacular dive sites in tropical waters. Before anyone goes diving, they should learn about the risk factors associated with the exposure to hyperbaric conditions and also the risks from exposure to marine life. Apart from amazing views of the coral reefs, divers may be astonished by the magnitude of marine species diversity in local waters, ranging from predators (sharks, barracuda, moray eels) to venomous or stinging fish (jellyfish, anemones) and sea snakes. If travelers are unprepared and know little about the existing risk factors, a diving trip that was much looked forward to may turn out to have some very unpleasant consequences. The article describes the most common marine species which divers can come across in tropical waters. It also discusses the management of injuries caused by dangerous marine creatures.
    MeSH term(s) Animals ; Cnidaria ; Diving/adverse effects ; Humans
    Language English
    Publishing date 2022-02-11
    Publishing country Poland
    Document type Journal Article
    ZDB-ID 2032821-7
    ISSN 2081-3252 ; 1641-9251
    ISSN (online) 2081-3252
    ISSN 1641-9251
    DOI 10.5603/IMH.2021.0052
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: The paediatric traveller.

    Korzeniewski, Krzysztof

    International maritime health

    2018  Volume 69, Issue 1, Page(s) 70–74

    Abstract: International travel with children, which is the opportunity for the family to see the world together, has become commonplace. If you are travelling with children the journey needs to be carefully planned, especially in cases of visiting a region with ... ...

    Abstract International travel with children, which is the opportunity for the family to see the world together, has become commonplace. If you are travelling with children the journey needs to be carefully planned, especially in cases of visiting a region with harsh environment or poor sanitation. It is particularly important in terms of thermoregulation (hot climate) and the immune system (protection against pathogens causing infectious and invasive diseases) as these are not fully developed in small children. In addition, it is important to maintain appropriate safety and security measures in the destination area (e.g. using child car seats during drive, supervising children during recreational activities in water and on land, avoiding contact with undomesticated animals). Moreover, it is essential to prepare a travel health kit containing drugs appropriate for young travellers - matched for their age and body weight, and to purchase personal prevention products for everyday use (sunscreen with a high sun protection factor, insect repellents, etc.).
    MeSH term(s) Child ; Child Care ; Child, Preschool ; Communicable Disease Control ; Humans ; Infant ; Travel ; Travel-Related Illness ; Tropical Climate ; Vaccination
    Language English
    Publishing date 2018-04-02
    Publishing country Poland
    Document type Journal Article ; Review
    ZDB-ID 2616644-6
    ISSN 2081-3252 ; 1641-9251
    ISSN (online) 2081-3252
    ISSN 1641-9251
    DOI 10.5603/IMH.2018.0011
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Sickle cell disease in the Zanzibar Archipelago, the Republic of Tanzania.

    Richert, Wanesa / Atumani, Mohammad Othman / Kołodziej, Daria / Korzeniewski, Krzysztof

    International maritime health

    2024  Volume 75, Issue 1, Page(s) 43–48

    Abstract: Background: Sickle cell disease (SCD) is one of the most severe haemoglobinopathies, a group of blood disorders, typically inherited. The condition affects over 7.7 million people globally and results in more than 370,000 deaths per year. The highest ... ...

    Abstract Background: Sickle cell disease (SCD) is one of the most severe haemoglobinopathies, a group of blood disorders, typically inherited. The condition affects over 7.7 million people globally and results in more than 370,000 deaths per year. The highest morbidity and mortality rates are seen in Africa and most children with SCD are born in Tanzania. The available literature on SCD morbidity in Tanzania focus primarily on the residents of the mainland, while there is little data available on SCD morbidity among residents of the Tanzanian islands in the Indian Ocean. The aim of the present study was to confirm the presence of sickle cell disease among residents of the Zanzibar Archipelago.
    Material and methods: The study group consisted of 27 people, residents of Pemba Island in the Zanzibar Archipelago, aged between 2 months and 26 years old, whose at least one parent has been diagnosed with sickle cell anaemia. Blood samples collected from the study participants were tested using HemoTypeSCTM, a rapid, point-of-care diagnostic test. The tests were performed at the Amal Hospital (Chake Chake town, Pemba Island) in June 2023.
    Results: Sickle cell disease was diagnosed in 11 study subjects (40.7%); their haemoglobin concentration ranged between 6.6 and 8.5 g/dL. The presence of the sickle cell trait (HbAS phenotype) was confirmed in 14 patients (51.9%). Only two of the tested patients had normal haemoglobin phenotype.
    Conclusions: The results of the present study support the necessity to introduce large-scale population- -based screening for SCD in the Zanzibar Archipelago, especially in infants whose family members have sickle cell anaemia. The introduction of such a programme will help monitor the number of new SCD cases in the region and may potentially reduce infant mortality due to SCD as well as minimize complications from SCD in older children through the adoption of effective disease prevention measures.
    Language English
    Publishing date 2024-04-20
    Publishing country Poland
    Document type Journal Article
    ZDB-ID 2032821-7
    ISSN 2081-3252 ; 1641-9251
    ISSN (online) 2081-3252
    ISSN 1641-9251
    DOI 10.5603/imh.99311
    Database MEDical Literature Analysis and Retrieval System OnLINE

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