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1.
PLoS One ; 17(10): e0276573, 2022.
Article in English | MEDLINE | ID: covidwho-2089436

ABSTRACT

INTRODUCTION: The Covid-19 pandemic has caused great personal stress for medical staff. To ensure adequate outpatient care for cancer patients, extensive safety and hygiene measures must be taken. This interview-based study examines the effects-both personal and professional-of the pandemic on the work routine of outpatient hematology/oncology nurses and medical assistants. PATIENTS, MATERIALS AND METHODS: Half a year after the outbreak of Covid-19 and the introduction of infection control regulations in three outpatient hematological/oncological centers, the affected medical staff (n = 15) were surveyed about the consequences for patient care and clinical work using audio-recorded telephone interviews. The interviews were transcribed and analyzed using a qualitative content analysis. RESULTS: The Covid-19 pandemic has complicated the medical care of cancer patients, but only a slight deterioration of medical and psycho-oncological care was observed. The level of stress experienced by medical staff is moderate, with hygiene and safety measures at the workplace helping to reduce stress. CONCLUSION: From the point of view of medical staff, the Covid-19 pandemic has had a moderate impact on the outpatient care of cancer patients. Safety measures against Covid-19 are decisive for ensuring the continuation of therapy and for motivating employees.


Subject(s)
COVID-19 , Neoplasms , Humans , Pandemics , COVID-19/epidemiology , Outpatients , Neoplasms/epidemiology , Neoplasms/therapy , Ambulatory Care
2.
Die Onkologie ; : 1-7, 2022.
Article in German | EuropePMC | ID: covidwho-1871150

ABSTRACT

Hintergrund COVID-19 betrifft im ambulanten Bereich vor allem auch Palliativpatienten, die im Rahmen der spezialisierten ambulanten Palliativversorgung (SAPV) versorgt werden. Zur Vermeidung von Infektionen wurde die Implementierung von neuen Sicherheitsvorkehrungen und telemedizinischen Kommunikationsmöglichkeiten in die an der Studie beteiligten SAPV erforderlich. Ziel der Arbeit Die Studie untersucht die Auswirkungen der COVID-19-Pandemie auf die persönlichen und sozialen Probleme von Palliativpatienten und ihre Erfahrungen mit der betreuenden SAPV. Material und Methoden 20 SAPV-Patienten wurden in halbstrukturierten Telefoninterviews zu ihren Problemen im Zusammenhang mit der Pandemie und Erfahrungen mit der SAPV-Betreuung befragt. Ergebnisse Angst vor Einsamkeit und Infektion belasten Palliativpatienten sehr. Die meisten Patienten wollten Krankenhausaufenthalte wegen erhöhter Infektionsgefahr vermeiden. Schutzmaßnahmen der SAPV gaben ihnen ein Gefühl der Sicherheit und wurden trotz Einschränkung des persönlichen Kontakts akzeptiert. Moderne Kommunikationsformen waren nützlich, konnten aber den persönlichen Kontakt nicht ersetzen. Diskussion Die Pandemie führte zu Veränderungen in der SAPV und hatte Auswirkungen auf das soziale Umfeld von Palliativpatienten. Schutzmaßnahmen sind für das Sicherheitsgefühl der betreuten Palliativpatienten wichtig. Die Versorgungsqualität der an COVID-19 angepassten SAPV-Struktur wird von den Patienten meist nicht als verschlechtert wahrgenommen. Ängste vor sozialer Isolation nehmen bei den Palliativpatienten einen hohen Stellenwert ein und können durch die SAPV abgebaut werden. Der persönliche Kontakt zur SAPV kann durch moderne Kommunikationsmöglichkeiten nicht ersetzt werden, wobei die Patienten Telemedizin im Sinne einer „Notlösung“ durchaus akzeptieren.

4.
Vaccines (Basel) ; 10(4)2022 Mar 29.
Article in English | MEDLINE | ID: covidwho-1810347

ABSTRACT

The urgent need for vaccines against Ebola virus (EBOV) was underscored by the large outbreak in West Africa (2014-2016). Since then, several promising vaccine candidates have been tested in pre-clinical and clinical studies. As a result, two vaccines were approved for human use in 2019/2020, of which one includes a heterologous adenovirus/Modified Vaccinia virus Ankara (MVA) prime-boost regimen. Here, we tested new vaccine candidates based on the recombinant MVA vector, encoding the EBOV nucleoprotein (MVA-EBOV-NP) or glycoprotein (MVA-EBOV-GP) for their efficacy after homologous prime-boost immunization in mice. Our aim was to investigate the role of each antigen in terms of efficacy and correlates of protection. Sera of mice vaccinated with MVA-EBOV-GP were virus-neutralizing and MVA-EBOV-NP immunization readily elicited interferon-γ-producing NP-specific CD8+ T cells. While mock-vaccinated mice succumbed to EBOV infection, all vaccinated mice survived and showed drastically decreased viral loads in sera and organs. In addition, MVA-EBOV-NP vaccinated mice became susceptible to lethal EBOV infection after depletion of CD8+ T cells prior to challenge. This study highlights the potential of MVA-based vaccines to elicit humoral immune responses as well as a strong and protective CD8+ T cell response and contributes to understanding the possible underlying mechanisms.

6.
PLoS One ; 16(8): e0256047, 2021.
Article in English | MEDLINE | ID: covidwho-1352711

ABSTRACT

INTRODUCTION: Five months after COVID-19 first occurred and protective regulations were introduced, patients at three outpatient hematological/oncological centers in Bavaria who had received antiproliferative tumor therapy (n = 30) were questioned about the pandemic's impact. PATIENTS, MATERIALS AND METHODS: In recorded semi-structured telephone interviews, the patients answered questions about their quality of life, treatment procedures, their relationship with medical care staff and modern communication technologies. Each interview consisted of 28 questions. The average length of an interview was 30 minutes. The interviews were transcribed and analyzed by means of a qualitative content analysis according to Mayring. RESULTS: The COVID-19 pandemic adds to the burden of patients by decreasing their social contacts. They perceived the new isolation and protective measures in outpatient clinics as mostly positive and said its impact had been only slightly adverse. With the implemented safety measures, they feel adequately protected and looked after and want their antiproliferative therapy to be performed as scheduled. Talking to medical staff provides additional reassurance. CONCLUSION: Although the COVID-19 pandemic has exacerbated the social isolation of tumor patients, it has had only a minor effect on tumor therapy in the surveyed patient population. The benefits of modern communication options to tumor patients remains uncertain and should be investigated further in future studies.


Subject(s)
COVID-19/epidemiology , Neoplasms/psychology , Adult , Antineoplastic Agents/therapeutic use , COVID-19/pathology , COVID-19/virology , Female , Humans , Interviews as Topic , Male , Middle Aged , Neoplasms/drug therapy , Neoplasms/pathology , Pandemics , SARS-CoV-2/isolation & purification , Social Isolation , Surveys and Questionnaires , Telephone
7.
Viruses ; 13(8)2021 07 29.
Article in English | MEDLINE | ID: covidwho-1335231

ABSTRACT

Despite the recent availability of vaccines against severe acute respiratory syndrome coronavirus type 2 (SARS-CoV-2), there is an urgent need for specific anti-SARS-CoV-2 drugs. Monoclonal neutralizing antibodies are an important drug class in the global fight against the SARS-CoV-2 pandemic due to their ability to convey immediate protection and their potential to be used as both prophylactic and therapeutic drugs. Clinically used neutralizing antibodies against respiratory viruses are currently injected intravenously, which can lead to suboptimal pulmonary bioavailability and thus to a lower effectiveness. Here we describe DZIF-10c, a fully human monoclonal neutralizing antibody that binds the receptor-binding domain of the SARS-CoV-2 spike protein. DZIF-10c displays an exceptionally high neutralizing potency against SARS-CoV-2, retains full activity against the variant of concern (VOC) B.1.1.7 and still neutralizes the VOC B.1.351, although with reduced potency. Importantly, not only systemic but also intranasal application of DZIF-10c abolished the presence of infectious particles in the lungs of SARS-CoV-2 infected mice and mitigated lung pathology when administered prophylactically. Along with a favorable pharmacokinetic profile, these results highlight DZIF-10c as a novel human SARS-CoV-2 neutralizing antibody with high in vitro and in vivo antiviral potency. The successful intranasal application of DZIF-10c paves the way for clinical trials investigating topical delivery of anti-SARS-CoV-2 antibodies.


Subject(s)
Antibodies, Monoclonal/administration & dosage , Antibodies, Neutralizing/administration & dosage , Antibodies, Viral/administration & dosage , COVID-19/prevention & control , SARS-CoV-2/immunology , Administration, Intranasal , Animals , COVID-19/virology , Female , Humans , Male , Mice , Mice, Inbred BALB C , SARS-CoV-2/genetics , Spike Glycoprotein, Coronavirus/immunology
8.
Proc Natl Acad Sci U S A ; 118(28)2021 07 13.
Article in English | MEDLINE | ID: covidwho-1284760

ABSTRACT

Severe acute respiratory syndrome (SARS) coronavirus 2 (SARS-CoV-2) has emerged as the infectious agent causing the pandemic coronavirus disease 2019 (COVID-19) with dramatic consequences for global human health and economics. Previously, we reached clinical evaluation with our vector vaccine based on modified vaccinia virus Ankara (MVA) against the Middle East respiratory syndrome coronavirus (MERS-CoV), which causes an infection in humans similar to SARS and COVID-19. Here, we describe the construction and preclinical characterization of a recombinant MVA expressing full-length SARS-CoV-2 spike (S) protein (MVA-SARS-2-S). Genetic stability and growth characteristics of MVA-SARS-2-S, plus its robust expression of S protein as antigen, make it a suitable candidate vaccine for industrial-scale production. Vaccinated mice produced S-specific CD8+ T cells and serum antibodies binding to S protein that neutralized SARS-CoV-2. Prime-boost vaccination with MVA-SARS-2-S protected mice sensitized with a human ACE2-expressing adenovirus from SARS-CoV-2 infection. MVA-SARS-2-S is currently being investigated in a phase I clinical trial as aspirant for developing a safe and efficacious vaccine against COVID-19.


Subject(s)
Antibodies, Neutralizing/immunology , Antibodies, Viral/immunology , COVID-19 Vaccines/immunology , COVID-19/prevention & control , Spike Glycoprotein, Coronavirus/immunology , Animals , COVID-19 Vaccines/standards , Dose-Response Relationship, Immunologic , Humans , Mice , Mice, Inbred BALB C , SARS-CoV-2 , Spike Glycoprotein, Coronavirus/genetics , T-Lymphocytes , Vaccination , Vaccinia virus
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