Air travel and COVID-19 prevention in the pandemic and peri-pandemic period: A narrative review.

Air travel during the COVID-19 pandemic is challenging for travellers, airlines, airports, health authorities, and governments. We reviewed multiple aspects of COVID peri-pandemic air travel, including data on traveller numbers, peri-flight prevention, and testing recommendations and in-flight SARS-CoV-2 transmission, photo-epidemiology of mask use, the pausing of air travel to mass gathering events, and quarantine measures and their effectiveness. Flights are reduced by 43% compared to 2019. Hygiene measures, mask use, and distancing are effective, while temperature screening has been shown to be unreliable. Although the risk of in-flight transmission is considered to be very low, estimated at one case per 27 million travellers, confirmed in-flight cases have been published. Some models exist and predict minimal risk but fail to consider human behavior and airline procedures variations. Despite aircraft high-efficiency filtering, there is some evidence that passengers within two rows of an index case are at higher risk. Air travel to mass gatherings should be avoided. Antigen testing is useful but impaired by time lag to results. Widespread application of solutions such as saliva-based, rapid testing or even detection with the help of "sniffer dogs" might be the way forward. The "traffic light system" for traveling, recently introduced by the Council of the European Union is a first step towards normalization of air travel. Quarantine of travellers may delay introduction or re-introduction of the virus, or may delay the peak of transmission, but the effect is small and there is limited evidence. New protocols detailing on-arrival, rapid testing and tracing are indicated to ensure that restricted movement is pragmatically implemented. Guidelines from airlines are non-transparent. Most airlines disinfect their flights and enforce wearing masks and social distancing to a certain degree. A layered approach of non-pharmaceutical interventions, screening and testing procedures, implementation and adherence to distancing, hygiene measures and mask use at airports, in-flight and throughout the entire journey together with pragmatic post-flight testing and tracing are all effective measures that can be implemented. Ongoing research and systematic review are indicated to provide evidence on the utility of preventive measures and to help answer the question "is it safe to fly?".

[Management of a global health crisis: first COVID-19 disease feedback from Overseas and French-speaking countries medical biologists]. / Gestion d'une crise sanitaire mondiale : premiers retours d'expérience de biologistes médicaux d'Outre-mer et de francophonie face au COVID-19.

The French society of clinical biology "Biochemical markers of COVID-19" has set up a working group with the primary aim of reviewing, analyzing and monitoring the evolution of biological prescriptions according to the patient's care path and to look for markers of progression and severity of the disease. This study covers all public and private sectors of medical biology located in metropolitan and overseas France and also extends to the French-speaking world. This article presents the testimonies and data obtained for the "Overseas and French-speaking countries" sub-working group made up of 45 volunteer correspondents, located in 20 regions of the world. In view of the delayed spread of the SARS-CoV-2 virus, the overseas regions and the French-speaking regions have benefited from feedback from the first territories confronted with COVID-19. Thus, the entry of the virus or its spread in epidemic form could be avoided, thanks to the rapid closure of borders. The overseas territories depend very strongly on air and/or sea links with the metropolis or with the neighboring continent. The isolation of these countries is responsible for reagent supply difficulties and has necessitated emergency orders and the establishment of stocks lasting several months, in order to avoid shortages and maintain adequate patient care. In addition, in countries located in tropical or intertropical zones, the diagnosis of COVID-19 is complicated by the presence of various zoonoses (dengue, Zika, malaria, leptospirosis, etc.).

Travel medicine consultation: An opportunity to improve coverage for routine vaccinations.

BACKGROUND: Travelers may be responsible for the spread of vaccine-preventable diseases upon return. Travel physicians and family physicians may play a role in checking and updating vaccinations before traveling. Our aim was to evaluate the vaccine coverage for mandatory and recommended vaccination in travelers attending a travel medicine clinic (TMC). METHODS: Vaccine coverage was measured using the current French immunization schedule as reference for correct immunization, in travelers providing a vaccination certificate during the TMC visit (university hospital of Saint-Étienne), between August 1, 2013 and July 31, 2014. RESULTS: In total, 2336 travelers came to the TMC during the study period. Among the 2019 study participants, only 1216 (60.3%) provided a vaccination certificate. Travelers who provided a vaccination certificate were significantly younger than travelers who did not (mean age: 34.8±17.8 vs. 46±18.4 years, P<0.005) and were less likely to be Hajj pilgrims. Vaccine coverage against Tetanus, Diphtheria, and Poliomyelitis (Td/IPV vaccine) was 91.8%, 78.6% against Measles, Mumps, and Rubella (MMR), and 59.4% against Viral Hepatitis B (HBV). BCG vaccine coverage was 71.9%. Older travelers were less likely to be correctly vaccinated, except against HBV as vaccinated travelers were significantly older than unvaccinated travelers. CONCLUSION: Obtaining information about immunization in travelers is difficult. Coverage for routine vaccines should be improved in this population. Travel medicine consultations could be the opportunity to vaccinate against MMR, HBV, and Td/IPV.

An attempt to support by the Japanese society of travel and health for increasing travel clinics.

In recent years, both the number of Japanese travelers to foreign countries and foreign travelers who visit Japan have increased remarkably, and the risk of travelers suffering various infectious diseases is also increasing. In many western countries travel clinics commonly perform medical consultations, vaccinations, and issue prescriptions. However, travel clinics are not yet popular in Japan. In 2011, Japanese society of travel and health (JSTH) began a support project for travel clinic with a goal of increasing their number throughout the country. The project included the release of a manual for education, training, equipment, details of medical treatment, sources of information for travel clinic opening on the JSTH website (http://jstah.umin.jp/20TravelClinicSupport/manual_20120726.pdf), and mediation of short-term visitation to experienced travel clinics registered in the JSTH to facilitate learning above information and aftercare services. JSTH accepted requests for visitation to travel clinics from 39 medical institutions between 2011 and 2018. By 2018, 26 (66.7%) of the 39 medical institutions had opened travel clinics within two years and the 25 travel clinics had registered in the JSTH and one was a campus-limited clinic, while most of the remaining institutions are still in preparation stages. The number of travel clinics registered in the JSTH has increased from 45 in 2011 to 108 in 2018. Twenty-five travel clinics registered in the JSTH between 2011 and 2018 were eventually receiving support from JSTH. Our data indicates travel clinics in Japan have gradually increased and establishment areas are expanding after the beginning of support project for travel clinics by JSTH.

The changing landscape of travel health services in Canada.

Canadians are increasingly travelling to areas that would necessitate a pre-travel consultation. Changes in professional regulations in Canada allow greater autonomy of nurses and pharmacists, resulting in shifts in provision of travel health services. We surveyed 824 Canadian travel clinics, 270 (33%) of whom responded. Private clinics were most common, and more likely to offer extended hours and drop-in appointments. In one province, pharmacies dominated. Half the services were relatively new and a similar proportion saw fewer than 10 patients weekly; 1/3 had a single provider. The increased spectrum of services may increase convenience for travellers but the large proportion seeing low numbers of clients will challenge providers to maintain competence.

Executive summary of imported infectious diseases after returning from foreign travel: Consensus document of the Spanish Society for Infectious Diseases and Clinical Microbiology (SEIMC) / Resumen ejecutivo de las enfermedades infecciosas importadas después de regresar de viajes en el extranjero: Documento de consenso de la Sociedad Española de Enfermedades Infecciosas y Microbiología Clínica

In a global world, knowledge of imported infectious diseases is essential in daily practice, both for the microbiologist-parasitologist and the clinician who diagnoses and treats infectious diseases in returned travelers. Tropical and subtropical countries where there is a greater risk of contracting an infectious disease are among the most frequently visited tourist destinations. The SEIMC considers it appropriate to produce a consensus document that will be useful to primary care physicians as well as specialists in internal medicine, infectious diseases and tropical medicine who help treat travelers returning from tropical and sub-tropical areas with infections. Preventive aspects of infectious diseases and infections imported by immigrants are explicitly excluded here, since they have been dealt with in other SEIMC documents. Various types of professionals (clinicians, microbiologists, and parasitologists) have helped produce this consensus document by evaluating the available evidence-based data in order to propose a series of key facts about individual aspects of the topic. The first section of the document is a summary of some of the general aspects concerning the general assessment of travelers who return home with potential infections. The main second section contains the key facts (causative agents, diagnostic procedures and therapeutic measures) associated with the major infectious syndromes affecting returned travelers [gastrointestinal syndrome (acute or persistent diarrhea); febrile syndrome with no obvious source of infection; localized cutaneous lesions; and respiratory infections]. Finally, the characteristics of special traveler subtypes, such as pregnant women and immunocompromised travelers, are described (AU)

En el mundo global, el conocimiento de las enfermedades infecciosas importadas es esencial en la práctica diaria, tanto para el microbiólogo-parasitólogo como para el clínico en enfermedades infecciosas que atiende a viajeros internacionales. Entre los destinos turísticos más visitados se encuentran muchos países tropicales o subtropicales, donde el riesgo de contraer una enfermedad infecciosa es más elevado. La SEIMC ha considerado pertinente la elaboración de un documento de consenso que sirva de ayuda tanto a médicos de Atención Primaria como a especialistas en Medicina Interna, Enfermedades Infecciosas y Medicina Tropical que atienden a viajeros que regresan con infecciones tras un viaje a zonas tropicales y subtropicales. Se han excluido de forma explícita los aspectos de prevención de estas y las infecciones importadas por inmigrantes, objeto de otros documentos de la SEIMC. Varios tipos de profesionales (clínicos, microbiólogos y parasitólogos) han desarrollado este documento de consenso tras evaluar los datos disponibles basados en la evidencia para proponer una serie de datos clave acerca de este aspecto. Inicialmente se revisan los aspectos generales acerca de la evaluación general del viajero que regresa con una potencial infección. En un segundo bloque se señalan los datos clave (agentes causales, procedimientos diagnósticos y medidas terapéuticas) de los síndromes infecciosos principales en el viajero que regresa (síndrome gastrointestinal (diarrea aguda o persistente), síndrome febril sin foco aparente, lesiones cutáneas localizadas e infecciones respiratorias). Finalmente se describen las características en viajeros especiales como la viajera embarazada y el viajero inmunodeprimido (AU)

El viajero internacional con inmunodepresión farmacológica: retos y oportunidades / International travelers receiving pharmacological immunosuppression: Challenges and opportunities

El número de viajeros internacionales bajo inmunodepresión farmacológica (IDF) ha aumentado debido a la mejor expectativa y calidad de vida que proporcionan estas terapias. La complejidad de la asesoría previaje en estos pacientes radica en su mayor susceptibilidad y gravedad ante determinadas infecciones relacionadas con el viaje, así como en las contraindicaciones e interacciones de determinadas vacunas y/o profilaxis con sus terapias de base. El consejo al viajero representa un reto para el clínico, que tiene que adaptar las vacunas y otras medidas preventivas a los pacientes inmunodeprimidos. Por ello, la valoración previa al viaje en pacientes con IDF debe realizarse en una unidad de medicina del viajero, de forma coordinada con el médico especialista que maneja su enfermedad de base. El objetivo de este artículo es revisar la evidencia disponible sobre las recomendaciones sanitarias indicadas en viajeros bajo tratamiento inmunosupresor en relación con la aplicación de vacunas, quimioprofilaxis antimalárica y otras medidas de prevención de enfermedades transmisibles (AU)

There is an increasing number of international travelers receiving immunosuppressive therapy due to the better life expectation and quality offered by this kind of treatment. The complexity of pre-travel counseling in these patients lies in their greater susceptibility to certain travel-related infections and the potential severity of these, as well as in the contraindications and interactions that may occur between certain vaccines and/or prophylaxis and their base therapy. Counseling the traveler represents a challenge for clinicians who have to tailor vaccinations and other recommended preventive measures to the immunosuppressed patients. Thus, pre-travel assessment of patients receiving immunosuppressive therapy should be performed in a specialized Traveler's Medical Unit, working closely with the specialist doctor in charge of treating the patient's underlying medical condition. The purpose of this article is to review available evidence on the health recommendations indicated in the pre-travel administration of vaccines, antimalarial chemoprophylaxis and other measures to prevent communicable diseases in travelers receiving immunosuppressive therapy (AU)

A descriptive study of advising practices during travel health consultations in France.

BACKGROUND: Recommendations for improving traveler adherence address both the content of the advice given and the structure of the consultation. The objective of this article is to describe how travel health consultations are structured in France. METHODS: A questionnaire based on both theoretical foundations and recommendations in the literature was sent to health professionals who practice in travel clinics, all of them members of France's Société de Médecine des Voyages. RESULTS: The response rate was 78.5% (176/224). One hundred thirty nine respondents (78.9%) reported that treatment (vaccinations, in particular) and advising were done at separate times in the consultation. The majority of respondents questioned the traveler on his wishes, difficulties, expectations, experiences, and previous knowledge. A third explored the traveler's perceptions regarding the seriousness of diseases, the effectiveness of prevention measures and the latter's adverse effects with a difference when health professionals were practicing >5 years and/or had received specific training ( P < 0.05). At the end of the consultation, 92% of the respondents asked the traveler whether he understood the advice given. One hundred thirty seven respondents (77.8%) gave travelers a booklet with additional advice, and 66.5% gave them a website where they could find health advice on their destination. Travelers were almost never offered group consultations or the opportunity to work on real-life situations. When there were language barriers, the respondents were more likely to seek help from a French-speaking member of the traveler's entourage (48.9%) than from an interpreter (22.7%). CONCLUSIONS: While the majority of practitioners follow most of the recommendations regarding the structure of travel health consultations, some of the factors that enhance traveler learning are underutilized, reducing the likelihood that travelers will apply the advice given. The study illustrates the need to develop more educational intervention methods and to evaluate their impact on travelers.

To prevent and deal with medical problems on board. / Prévenir et gérer les problèmes médicaux en navigation.

As more and more quality of life becomes a goal of personnel and sustainable development, long-distance travel is becoming more widespread. Sailing around the world is an example of this evolution. The keys to a successful journey are rigorous preparation and adherence to some prevention rules. Medical or surgical emergencies are rare, and can often be dealt with by remote medical contact. New communication technologies such as satellite phones make it possible to seek medical advice from professionals, or even for sailers to treat themselves with very short prior training, provided that the required equipment and medicines have been embarked before leaving. Sophisticated rescue can also be organized. These technological innovations have changed the security and lives of sailors and explorers in remote areas of the world.

La qualité de la vie étant un objectif de développement personnel et durable, les voyages au long cours se généralisent. Les périples à la voile sont un exemple de cette évolution. Les clés pour un périple réussi sont une préparation rigoureuse et le respect de quelques règles de prévention. Les urgences médicales sont rares et peuvent être souvent maîtrisées par un contact médical à distance. Les nouveaux moyens de communication tels que téléphones satellite permettent de demander des conseils médicaux à des professionnels, voire même aux navigateurs de se traiter eux-mêmes après une très courte formation préalable, pour autant que le matériel et les médicaments nécessaires aient été embarqués avant de partir. Les progrès technologiques ont changé la sécurité et la vie des navigateurs et explorateurs aux confins reculés de la planète.

Zika virus: practical guidelines. / Virus Zika : recommandations pratiques.

Zika virus suddenly emerged in Latin America in 2015­2016. Congenital malformations have been observed in infected pregnant women, causing a major public health impact in affected countries, particularly in Brazil. In addition, sexual transmission of Zika virus has been well documented. This led to the development of prevention strategies and recommendations for travellers visiting at risk countries. These documents are regularly amended depending on the evolution of scientific knowledge, the epidemiologic trends and the national and international guidelines. Through practical cases, we present here the guidelines developed by the Geneva University Hospitals.

Le virus Zika a émergé brusquement en 2015­2016 en Amérique latine. Lors de cette épidémie, des complications fœtales ont pu être observées avec des conséquences majeures sur la santé publique de ces pays, en particulier au Brésil. De plus, une transmission par voie sexuelle du virus a été bien documentée. Il a ainsi été nécessaire de développer des stratégies de prévention et des recommandations pour les voyageurs visitant des pays à risque. Ces documents sont évolutifs en fonction des connaissances scientifiques, de l'épidémiologie de la maladie et des recommandations nationales et internationales. Par l'intermédiaire de cas illustratifs, nous présentons les recommandations utilisées aux Hôpitaux universitaires de Genève.

[Hotline for Zika virus: experience of a tropical and travel medicine unit]. / Línea de atención telefónica sobre virus Zika: experiencia de una unidad de medicina tropical y del viajero.

The current outbreak of Zika virus has caused great social alarm, generated in part by the lack of information in the general population. In order to provide accurate and verified information, the Tropical and Travel Medicine Unit of Hospital Carlos III-La Paz (Madrid, Spain) established a hotline for Zika virus infection. We present the data concerning the first 6 months of operation of the telephone hotline. The predominant call profile consisted of women seeking information about the risk of acquiring the disease before travelling. Brazil, Mexico and Colombia were the destinations for which the most information was requested. Most of the consultations were resolved by providing information only. The implementation of call devices that provide confirmed and reliable information on diseases associated with great alarm are of significant public health interest, as they reduce the number of unnecessary medical consultations and save on medical costs.

Estrecho marítimo / Strait

Estas historias de la LIBRETA DE VIAJE DEL MÉDICO DE FAMILIA, que forman una biblioteca del médico caminante o viajero emocional, son hojas sueltas en las que se escribe sobre paisajes y emociones; son un atlas de geografía emocional. La evocación de un paisaje ante la asistencia a un paciente -montañas, ríos, valles, playas, mares, desiertos, mesetas, islas, pantanos, cascadas, dunas, bosques, salinas, lagos, etc.-, con las sensaciones sentidas por el médico, de calor, frescor, humedad, dificultad, agobio, serenidad, inmensidad, soledad, etc. No es un diario, sólo una libreta de apuntes con las vivencias del médico sobre los patrones y procesos de la consulta en un cierto caso clínico, que a su vez, puede ilustrar un prototipo de esa clase de casos (AU)

These stories of the THE FAMILY PHYSICIAN’S TRAVEL NOTEBOOK, which form a library of the walking doctor or emotional traveler, are loose-leaf pages with writings about landscapes and emotions; they are an atlas of emotional geography. The evocation of a landscape before attending a patient -mountains, rivers, valleys, beaches, seas, deserts, plateaus, islands, swamps, waterfalls, dunes, forests, salt marshes, lakes, etc.-, with the sensations felt by the doctor -heat, coolness, humidity, hardship, stress, serenity, vastness, loneliness, etc. It is not a diary, only a notebook with the doctor's experiences about the patterns and processes of consultation in a clinical case, which in turn may illustrate a prototype for this type of cases (AU)

Viajar por trabajo. ¿Un nuevo perfil de viajero de alto riesgo? / The business traveler. A new high-risk traveler profile?

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Libreta de viaje del médico de familia. Iceberg / Family physician´s travel notebook. Iceberg

Estas historias de la LIBRETA DE VIAJE DEL MÉDICO DE FAMILIA, que forman una biblioteca del médico caminante o viajero emocional, son hojas sueltas en las que se escribe sobre paisajes y emociones; son un atlas de geografía emocional. La evocación de un paisaje ante la asistencia a un paciente –montañas, ríos, valles, playas, mares, desiertos, mesetas, islas, pantanos, cascadas, dunas, bosques, salinas, lagos, etc.-, con las sensaciones sentidas por el médico, de calor, frescor, humedad, dificultad, agobio, serenidad, inmensidad, soledad, etc. No es un diario, solo una libreta de apuntes con las vivencias del médico sobre los patrones y procesos de la consulta en un cierto caso clínico, que a su vez, puede ilustrar un prototipo de esa clase de casos (AU)

These stories of the FAMILY PHYSICIAN’S TRAVEL NOTEBOOK, which form a library of the walking doctor or emotional traveler, are loose sheets with writings about landscapes and emotions; they are an atlas of emotional geography. The evocation of a landscape before attending a patient –mountains, rivers, valleys, beaches, seas, deserts, plateaus, islands, swamps, waterfalls, dunes, forests, salt marshes, lakes, etc.-, with the sensations felt by the doctor -heat, coolness, humidity, hardship, stress, serenity, vastness, loneliness, etc. It is not a diary, only a notebook with the doctor’s experiences about the patterns and processes of consultation in a clinical case, which in turn may illustrate a prototype for this type of cases (AU)