Polioviruses declared eradicated in Germany found in wastewater samples

Loud RKI As part of a research project, small amounts of Polioviruses in Wastewater samples found in Düsseldorf, Cologne, Hamburg and Munich, among others. These are not wild-type polioviruses, but viruses derived from the oral polio vaccination (still carried out in several countries) with weakened but live polio pathogens (cVDPV type 2, Risk group 3 ). The weakened vaccine viruses could, in very rare cases, change (through mutation) in such a way that they can again trigger polyomyelitis. The STIKO recommends using the current detection of polioviruses in wastewater as an opportunity to check the vaccination status of the population for completeness and, in case of incomplete vaccination, to Vaccination protection to have vaccinations carried out. However, wastewater does not play a role as a source of infection for the general population.

However, what should be taken into account in research and analysis laboratories that handle wastewater samples? Risk assessment The established hygiene measures (especially hand disinfection) in the laboratories should be sufficient even if polioviruses are also found in the wastewater samples examined, since the presence of other viruses in the wastewater was already likely. However, this must always be examined individually and on a workplace-specific basis (e.g., is there untargeted activity?).

According to the RKI, a check of vaccination status and, if necessary, vaccination against polioviruses is indicated for persons with an occupational risk, e.g., staff of communal accommodation for resettlers, refugees, and asylum seekers; for medical personnel who may have close contact with sick persons; and for personnel in laboratories with a risk of infection, which may also include laboratories that regularly handle wastewater samples.

In general, employers can be advised to include the pathogen in their existing risk assessment and to review it as needed, for which they can seek expert assistance. To expand their expertise, AGCT Consulting GmbH offers “AGCT specialist courses according to BioStoffV” In addition, the AGCT can also offer expert preparation of a risk assessment (protection levels 1-2). In general, employers can be advised to include the pathogen in their existing risk assessment and review it as needed. They can also seek expert assistance for this.