Publications by authors named "Volkmann A"

This paper discusses the increasing trend of direct-care physicians taking on teaching roles in community hospitals, both in the United States and Brazil. It highlights the challenges faced by these physicians, who often lack formal pedagogical training and dedicated time for teaching. The text emphasizes the need for structured support, faculty development programs, and collaboration with academic centers to ensure the quality of education in these settings.

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Background: Health worker vaccination programmes can help to safeguard both health workers (HWs) and their patients and enhance vaccine uptake more broadly in local communities and society. This study's objective was to increase global understanding of how existing HW vaccination programmes were leveraged for emergency COVID-19 vaccine introduction.

Methods: This qualitative study included 13 in-depth group interviews with 38 key informants with expertise in vaccine programme implementation from eleven countries in five WHO regions: Albania, Armenia, Bhutan, Lao PDR, Maldives, Mongolia, Oman, Timor Leste, the United Kingdom, Vietnam, and Zimbabwe in addition to WHO regional focal points from all six regions.

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Article Synopsis
  • The study investigates the safety and effectiveness of a new vaccine, MVA-BN-WEV, designed to protect against three encephalitic alphaviruses (WEEV, EEEV, VEEV) in healthy adults.
  • Forty-five participants were given two doses of the vaccine at varying strengths, monitored for side effects and immune response over six months.
  • Results showed the vaccine was generally safe with mild side effects, and it successfully triggered strong immune responses against all three viruses, especially at higher doses.
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  • Researchers tested two vaccines for eastern equine encephalitis virus (EEEV) in cynomolgus macaques using an aerosol infection model.
  • Both vaccines, MVA-BN-EEEV (monovalent) and MVA-BN-WEV (multivalent), triggered strong and lasting immune responses that protected the monkeys against lethal EEEV exposure.
  • The results showed that the vaccinated macaques had nearly complete protection from viral presence in their bodies and no significant brain damage, suggesting the vaccines are effective against aerosolized EEEV infections.
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Objectives: Delivered as part of the global assessment of diabetes in urban settings, this study explores different aspects of living with type 2 diabetes, for adults aged 18-40. Primary questions were as follows: (1) can we identify subgroups of adults under 40 years old sharing specific perspectives towards health, well-being and living with type 2 diabetes and (2) do these perspectives reveal specific barriers to and opportunities for better type 2 diabetes prevention and management and improved well-being?

Design: The study employed a mixed-method design with data collected through demographic questionnaires, Q-sort statement sorting exercises, focus groups discussions and individual interviews.

Setting: Primary care across Greater Manchester, UK.

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Article Synopsis
  • The text discusses immunobridging, a statistical method used to estimate the vaccine's protective effect in humans based on data from animal studies, specifically in relation to the Ebola vaccine regimen Ad26.ZEBOV and MVA-BN-Filo.
  • It presents findings that vaccine-induced antibody levels in humans can remain stable for at least 3.8 years, and immunological memory is retained, evidenced by strong responses to booster vaccinations.
  • The discussion highlights the potential benefits for humans in utilizing the anamnestic response to combat Ebola virus, considering their slower disease progression compared to non-human primates, which may allow for effective immune response development.
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Introduction: An EU-funded project in five countries examined vulnerability mechanisms during the COVID-19 pandemic. The research team in Germany concentrated on people living at the intersection of migration and precariousness. The study aimed first to provide an understanding of how migrants living in precarious conditions in Munich had been affected by the pandemic, both from their own and from experts' perspectives.

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The induction of antiviral innate immunity by systemic immunization with live virus can be employed to positively impact the response to therapeutic vaccination. We previously demonstrated that systemic immunization with a non-replicating MVA encoding CD40 ligand (CD40L) enhances innate immune cell activation and function, and triggers potent antitumor CD8 T cell responses in different murine tumor models. Antitumor efficacy was increased when combined with tumor targeting antibodies.

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This paper describes the process, advantages and limitations of a qualitative methodology for defining and analyzing vulnerabilities during the COVID-19 pandemic. Implemented in Italy in two sites (Rome and outside Rome, in some small-medium sized municipalities in Latium) in 2021, this investigation employed a mixed digital research tool that was also used simultaneously in four other European countries. Its digital nature encompasses both processes of data collection.

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The Marburg virus (MARV) and Sudan virus (SUDV) belong to the filovirus family. The sporadic human outbreaks occur mostly in Africa and are characterized by an aggressive disease course with high mortality. The first case of Marburg virus disease in Guinea in 2021, together with the increased frequency of outbreaks of Ebola virus (EBOV), which is also a filovirus, accelerated the interest in potential prophylactic vaccine solutions against multiple filoviruses.

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Aggressive behavior is one of the most conserved social interactions in nature and serves as a crucial evolutionary trait. Serotonin (5-HT) plays a key role in the regulation of our emotions, such as anxiety and aggression, but which molecules and mechanisms in the serotonergic system are involved in violent behavior are still unknown. In this study, we show that deletion of the P/Q-type calcium channel selectively from serotonergic neurons in the dorsal raphe nuclei (DRN) augments aggressive behavior in male mice, while anxiety is not affected.

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Respiratory syncytial virus (RSV) causes a respiratory disease with a potentially fatal outcome especially in infants and elderly individuals. Several vaccines failed in pivotal clinical trials, and to date, no vaccine against RSV has been licensed. We have developed an RSV vaccine based on the recombinant Modified Vaccinia Virus Ankara-BN (MVA-RSV), containing five RSV-specific antigens that induced antibody and T-cell responses, which is currently tested in clinical trials.

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Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has caused a worldwide pandemic. Here, we present non-human primate immunogenicity and protective efficacy data generated with the capsid virus-like particle (cVLP)-based vaccine ABNCoV2 that has previously demonstrated immunogenicity in mice. In rhesus macaques, a single vaccination with either 15 or 100 μg ABNCoV2 induced binding and neutralizing antibodies in a dose-dependent manner, at levels comparable to those measured in human convalescents.

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Venezuelan, eastern and western equine encephalitis viruses (EEV) can cause severe disease of the central nervous system in humans, potentially leading to permanent damage or death. Yet, no licensed vaccine for human use is available to protect against these mosquito-borne pathogens, which can be aerosolized and therefore pose a bioterror threat in addition to the risk of natural outbreaks. Using the mouse aerosol challenge model, we evaluated the immunogenicity and efficacy of EEV vaccines that are based on the modified vaccinia Ankara-Bavarian Nordic (MVA-BN) vaccine platform: three monovalent vaccines expressing the envelope polyproteins E3-E2-6K-E1 of the respective EEV virus, a mixture of these three monovalent EEV vaccines (Triple-Mix) as a first approach to generate a multivalent vaccine, and a true multivalent alphavirus vaccine (MVA-WEV, Trivalent) encoding the polyproteins of all three EEVs in a single non-replicating MVA viral vector.

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It has been proven challenging to conduct traditional efficacy trials for Ebola virus (EBOV) vaccines. In the absence of efficacy data, immunobridging is an approach to infer the likelihood of a vaccine protective effect, by translating vaccine immunogenicity in humans to a protective effect, using the relationship between vaccine immunogenicity and the desired outcome in a suitable animal model. We here propose to infer the protective effect of the Ad26.

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Background: The average treatment effect of antidepressants in major depression was found to be about 2 points on the 17-item Hamilton Depression Rating Scale, which lies below clinical relevance. Here, we searched for evidence of a relevant treatment effect heterogeneity that could justify the usage of antidepressants despite their low average treatment effect.

Methods: Bayesian meta-analysis of 169 randomized, controlled trials including 58,687 patients.

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The Brighton Collaboration Viral Vector Vaccines Safety Working Group (V3SWG) was formed to evaluate the safety and characteristics of live, recombinant viral vector vaccines. The Modified Vaccinia Ankara (MVA) vector system is being explored as a platform for development of multiple vaccines. This paper reviews the molecular and biological features specifically of the MVA-BN vector system, followed by a template with details on the safety and characteristics of an MVA-BN based vaccine against Zaire ebolavirus and other filovirus strains.

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Purpose: In recent years, there has been mounting evidence on the clinical importance of body composition, particularly obesity and sarcopenia, in various patient populations. However, the relevance of these pathologic conditions remains controversial, especially in the field of traumatology. Computed tomography-based measurements allow clinicians to gain a prompt and thorough assessment of fat and muscle compartments in trauma patients.

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Article Synopsis
  • Researchers explored the use of Modified Vaccinia virus Ankara-Bavarian Nordic (MVA-BN®) to develop recombinant vaccines for foot-and-mouth disease (FMD) targeting newly emerging strains of the FMD virus (FMDV).
  • The study involved expressing different variants of the FMDV 3C protease to enhance vaccine safety while still effectively producing the necessary FMDV antigens.
  • Two MVA-BN FMD constructs were found to be safe and effective in cattle, achieving full protection against clinical FMD and the virus, while also allowing for easy differentiation between vaccinated and infected animals.
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Background: Omics data can be very informative in survival analysis and may improve the prognostic ability of classical models based on clinical risk factors for various diseases, for example breast cancer. Recent research has focused on integrating omics and clinical data, yet has often ignored the need for appropriate model building for clinical variables. Medical literature on classical prognostic scores, as well as biostatistical literature on appropriate model selection strategies for low dimensional (clinical) data, are often ignored in the context of omics research.

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