Publications by authors named "G P K Steffen"

Background: People who inject drugs (PWID) are at high risk of blood-borne infections, and injection drug use contributes significantly to hepatitis C virus (HCV) transmission. The WHO has therefore set targets of reducing HCV incidence and prevalence among PWID and increasing treatment coverage to eliminate HCV by 2030. The DRUCK study (2011-2014) found high HCV prevalence and low treatment coverage among PWID in Germany.

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  • Yerba mate is a plant that is really important for people and the environment in the places where it grows, especially in Brazil.
  • Scientists studied different growing environments for yerba mate to see how special fungi help the plant absorb nutrients from the soil.
  • They found that the type of system used for growing (like traditional or organic) affects the number of beneficial fungi and the nutrients available for the plants, with more diversity in the traditional systems.
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Using a structured literature search and meta-regression procedures, this chapter reports a study that sought to determine whether the associations between coordinated attention and language are moderated by operationalizations of coordinated attention, study design, and other participant characteristics. Studies were located using database searches. This resulted in 46 reports or datasets, 464 effect sizes representing 1,482 participants.

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Background: To reach the global elimination goals of viral hepatitis B and C (HBC, HCV), human immunodeficiency virus (HIV) and other sexually transmitted infections as a public health threat by 2030, monitoring is needed. Staff members of drug services and opioid substitution treatment (OST) practices in Berlin and Bavaria recruited clients for a pilot study addressing the respective infections among people who injected drugs (PWID) in Germany, 2021/2022. Participants filled a questionnaire and were tested for HBV, HCV, HIV and syphilis using dried blood spots (DBS).

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  • - The study aimed to estimate the prevalence of chronic Hepatitis C Virus (cHCV) infections in EU/EEA countries for the year 2019, using a method called multi-parameter evidence synthesis (MPES) to analyze data from various sources.
  • - In 29 out of 30 EU/EEA countries, the overall cHCV prevalence was found to be 0.50%, with notably higher rates in the eastern EU/EEA (0.88%), and over a third of cases were linked to people who inject drugs (PWID).
  • - The findings indicate that while cHCV prevalence is generally low, targeted efforts are needed, particularly in eastern regions and among PWID, to
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