Probably not, but can be a source. Which is why it is regulated and steps are taken to a) reduce E. coli in the sludge and b) apply it at certain times, etc. per the EPA link.
Treatment methods eliminate more than 95% of the pathogens in sewage sludge; the risk of disease from those that remain in biosolids is short-term because most of them do not survive beyond 30 days in the soil environment. In addition to requiring pathogen reduction treatment, Pennsylvania's biosolids regulations contain several risk reduction and management requirements that reduce the likelihood of disease to very low levels. These requirements include:
treatment and management practices to reduce the attraction of disease vectors and thus the probability that pathogens would be transferred from biosolids to humans or animals
application setback requirements from occupied dwellings and from water sources
minimum time requirements from biosolids application to harvest, ranging from 30 days for forage and feed crops to 38 months for some food crops
no grazing allowed within 30 days of biosolids application to pastures
If carefully followed, these requirements make the risk of disease from land-applied biosolids similar to or lower than that of land-applied manures. In fact, there are no documented cases of human or animal diseases being contracted from land-applied biosolids.
Changes in microorganisms have undoubtedly contributed to this increase, as have changes in growing, harvesting, distribution, processing and consumption practices. Listeria monocytogenes, Clostridium botulinum and Bacillus cereus are naturally present in some soils. Their presence on fresh produce is not uncommon. Salmonella, E. coli O157:H7, Campylobacter jejuni, Vibrio cholerae, parasites and viruses can contaminate produce through raw or improperly composted manure, irrigation water containing untreated sewage or manure, and contaminated wash water. Contact with mammals, reptiles, fowl, insects and unpasteurized animal products are other sources of contamination.
In the USA, food poisoning rates are far higher than Europe, and part of that is probably the biosludge...