Michael Brandl

Mr. Michael Brandl

orcid

Research Focus & Metrics

Academic Career Length

7Years (2020-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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14 January 2022 in The Lancet Regional Health - Europe
Verified
Journal Article
Open access
BSBeneditta Suwono
Beneditta Suwono
ASAnnika Steffen
Annika Steffen
BSBirgitta Schweickert
Birgitta Schweickert
VSViktoria Schönfeld
Viktoria Schönfeld
MBMichael Brandl
Michael Brandl
SHSebastian Haller
Sebastian Haller
Outbreaks of coronavirus disease (COVID-19) in hospitals and long-term care facilities (LTCFs) pose serious public health threats. We analysed how frequency and size of SARS-CoV-2 outbreaks in hospitals and LTCFs have altered since the beginning of the pandemic, in particular since the start of the vaccination campaign. We used mandatory notification data on SARS-CoV-2 cases in Germany and stratified by outbreak cases in hospitals and LTCFs. German vaccination coverage data were analysed. We studied the association of the occurrence of SARS-CoV-2 outbreaks and outbreak cases with SARS-CoV-2 cases in Germany throughout the four pandemic waves. We built also counterfactual scenarios with the first pandemic wave as the baseline. By 21 September 2021, there were 4,147,387 SARS-CoV-2 notified cases since March 2020. About 20% of these cases were reported as being related to an outbreak, with 1% of the cases in hospitals and 4% in LTCFs. The median number of outbreak cases in the different phases was smaller (≤5) in hospitals than in LTCFs (>10). In the first and second pandemic waves, we observed strong associations in both facility types between SARS-CoV-2 outbreak cases and total number of notified SARS-CoV-2 cases. However, during the third pandemic wave we observed a decline in outbreak cases in both facility types and only a weak association between outbreak cases and all cases. The vaccination campaign and non-pharmaceutical interventions have been able to protect vulnerable risk groups in hospitals and LTCFs. No specific funding

22 April 2021 in Microorganisms
Verified
Journal Article
Open access
PDF file
MBMichael Brandl
Michael Brandl
AHAlexandra Hoffmann
Alexandra Hoffmann
NWNiklas Willrich
Niklas Willrich
ARAnnicka Reuss
Annicka Reuss
FRFelix Reichert
Felix Reichert
SHSebastain Haller
Sebastain Haller
Data from surveillance networks show that men have a higher incidence rate of infections with anti-microbial-resistant (AMR) pathogens than women. We systematically analysed data of infections and colonisations with AMR pathogens under mandatory surveillance in Germany to quantify gender-specific differences. We calculated incidence-rates (IR) per 100,000 person–years for invasive infections with Methicillin-resistant Staphylococcus aureus (MRSA), and for infections or colonisations with carbapenem-non-susceptible Acinetobacter spp. (CRA), and Enterobacterales (CRE), using the entire German population as a denominator. We limited the study periods to years with complete notification data (MRSA: 2010–2019, CRA/CRE: 2017–2019). We used Poisson regression to adjust for gender, age group, federal state, and year of notification. In the study periods, IR for all notifications were 4.2 for MRSA, 0.90 for CRA, and 4.8 for CRE per 100,000 person-–years. The adjusted IR ratio for infections of men compared to women was 2.3 (95% confidence interval [CI]: 2.2–2.3) for MRSA, 2.2 (95%CI: 1.9–2.7) for CRA, and 1.7 (95%CI: 1.6–1.8) for CRE. Men in Germany show about double the risk for infection with AMR pathogens than women. This was also true for colonisations, where data were available. Screening procedures and associated hygiene measures may profit from a gender-stratified approach.

13 February 2020 in Epidemiology and Infection
Verified
Journal Article
Open access
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MBMichael Brandl
Michael Brandl
ASAxel J. Schmidt
Axel J. Schmidt
UMU. Marcus
U. Marcus
MHM. An der Heiden
M. An der Heiden
SDS. Dudareva
S. Dudareva
Hepatitis B vaccination is recommended for men who have sex with men (MSM) in many countries, but information on vaccine coverage is scarce. We studied hepatitis B vaccination programmes and coverage among MSM in Europe to guide prevention. From a large (N = 174 209) pan-European MSM survey (EMIS-2010), we used data on self-reported hepatitis B vaccination, age, education, settlement size and disclosure of the same-sex sexual orientation (‘outness’). We excluded participants with a history of hepatitis B. In multilevel (participants, countries) logistic regression models, we calculated adjusted odds ratios (aOR) with 95% confidence intervals (95% CI). We analysed data of 163 987 MSM in 38 European countries: 38.3% were ‘out’ to all or almost all, 56.4% reported vaccination against hepatitis B and 65.5% lived in countries with free recommended hepatitis B vaccination for MSM. In the final model the odds for being vaccinated increased with outness (‘out to all or almost all’: aOR 1.76, 95% CI 1.70–1.83 vs. ‘out to no one’) and with living in countries, where hepatitis B vaccination was recommended and free-of-charge for MSM (aOR 2.21, 95% CI 1.47–3.32 vs. ‘no or unclear recommendation’). To increase hepatitis B vaccination coverage among MSM, implementation of MSM-specific recommendations and improvement of the societal climate for MSM is needed.

7 November 2024 in Eurosurveillance
Verified
Journal Article
Open access
MBMichael Brandl
Michael Brandl
ASAxel J. Schmidt
Axel J. Schmidt
UMUlrich Marcus
Ulrich Marcus
EDErika Duffell
Erika Duffell
ESEttore Severi
Ettore Severi
SDSandra Dudareva
Sandra Dudareva
Background: Hepatitis A and B vaccinations are recommended for men who have sex with men (MSM), given their increased risk of infection. However, data on vaccination programmes are scarce. Aim: To use information on vaccination recommendations and vaccine uptake among MSM in the WHO European Region to guide prevention. Methods: From a large pan-European MSM Internet Survey (EMIS-2017), we analysed data on self-reported hepatitis A and B vaccination status by age, education, financial coping, settlement size, outness (disclosure of sexual behaviour), migration history and diagnosis with hepatitis C or HIV, using multivariable logistic regression. Additionally, we collected information on national hepatitis A and B vaccination recommendations. Results: We present data of 113,884 MSM, median age 36 years (IQR: 27–47). Vaccination for hepatitis A and B was recommended and free for MSM in 7 and 18 of 43 countries, respectively. Of all respondents, 48% (n = 50,966) reported ever being vaccinated against hepatitis A, and 53% (n = 56,889) against hepatitis B. Odds for being vaccinated against hepatitis A increased with outness (‘out to (almost) all’ aOR: 1.78, 95% CI: 1.72–1.85 vs ‘out to none’) and were higher in countries where vaccination was recommended and free for MSM (aOR: 2.22, 95% CI: 1.29–3.82 vs ‘no recommendation’). Results for hepatitis B were similar (outness: aOR: 1.81, 95% CI: 1.75–1.88 and MSM-specific vaccination recommendation: aOR: 2.44, 95% CI: 1.54–3.85). Conclusion: Large proportions of MSM in Europe remain vulnerable to hepatitis A and B, despite available vaccination. Implementation of MSM-specific vaccination recommendations and greater efforts to improve the societal climate for MSM are needed to address gaps in vaccine coverage.

13 October 2020 in Epidemiology and Infection
Verified
Journal Article
Open access
PDF file
MBMichael Brandl
Michael Brandl
RSR. Selb
R. Selb
SSS. Seidl-Pillmeier
S. Seidl-Pillmeier
DMD. Marosevic
D. Marosevic
UBU Buchholz
U Buchholz
SRS. Rehmet
S. Rehmet
In early March 2020, a COVID-19-outbreak occurred in the district of Tirschenreuth, Germany. The outbreak was characterised by a rapid increase in case numbers and a comparatively high crude case fatality ratio (CFR; 11%). Until the beginning of May 2020, 1122 cases were reported in the district. To investigate the outbreak, we analysed surveillance and other data available at the district health department, including data on cases living in care facilities and public health measures applied. Furthermore, we compared the number of tests performed in Tirschenreuth and in Germany as a whole. We interviewed the first 110 cases in order to investigate potential exposures at the beginning of the outbreak. We found that returning ski-travellers from Austria and Italy and early undetected community transmission likely initiated the outbreak which was then accelerated by Bavarian beer festivities. Testing of mainly acute cases in the district of Tirschenreuth resulted in a higher rate of positive tests compared to the whole of Germany. Despite adjustment for age, the CFR continued to exceed the German mean which was due to spread to vulnerable populations. Strict public health measures likely contributed to control the outbreak by mid-April 2020.

24 July 2025 in Eurosurveillance
Verified
Journal Article
Open access
LKLudmila A Kasatkina
Ludmila A Kasatkina
VFVladyslav Fedorchenko
Vladyslav Fedorchenko
ISIryna Sidorova
Iryna Sidorova
LGLidia Gomenyuk
Lidia Gomenyuk
OYOleksandra Yakovets
Oleksandra Yakovets
ONOlena Nesterova
Olena Nesterova
BACKGROUND: Aligned with World Health Organization (WHO) goals, Ukraine aims to eliminate viral hepatitis. While some data on viral hepatitis B and C prevalence exist among key populations, nationwide prevalence in the general population has never been assessed. AIM: To assess the prevalence of viral hepatitis B, C, and D seromarkers in Ukraine in 2021 to plan and monitor elimination measures. METHODS: Blood samples available from a cross-sectional household-based SARS-CoV-2 serosurvey conducted in 2021 were tested for hepatitis C virus (HCV) antibodies, total antibodies against hepatitis B virus (HBV) core antigen (HBc), hepatitis B surface antigen (HBsAg) and hepatitis D virus (HDV) antibodies. We calculated crude and weighted proportions for anti-HCV, anti-HBc and HBsAg positivity. To account for differences in sex, age group and urbanisation level, we applied post-stratification weights using inverse probability weighting based on the distribution of the Ukrainian population. We calculated proportions positive for anti-HDV among HBsAg-positive cases and weighted regional estimates for HBV and HCV seromarkers. RESULTS: Weighted prevalence of anti-HCV was 3.3% (95% CI: 2.8–4.0), anti-HBc 11.6% (95% CI: 10.8–12.5) and HBsAg 0.9% (95% CI: 0.7–1.2). Among HBsAg-positive individuals, 7.5% (95% СI: 3.0–17.9) were anti-HDV positive. We found higher prevalence of HBV and HCV seromarkers among men and in southern Ukraine. CONCLUSION: HBsAg prevalence and considerably high anti-HBc and anti-HCV prevalence indicate substantial lifetime exposure. This reinforces the necessity of sustained prevention such as HBV vaccination of newborns and groups at increased risk, regular hepatitis B and C screening, early treatment, and raising awareness to reduce ongoing transmission.