Page History

Background: Salmonella enterica subsp. enterica serovar Virchow (antigenic formula 6,7,14:r:1,2) is a serovar of the O:7 (C₁) serogroup. Serovar Virchow was first isolated from a patient with a typhoid-like illness in 1930 by Kaufmann. This serovar has been reported to infect a infant that was transmitted by the household dogs.  A 2010 report from Switzerland reported that S. Virchow was one of the 5 most common Salmonella serovars in Europe, with reports of 3^rd-generation cephalosporin- and fluoroquinolone-resistance.  Most often, S. Virchow infection causes gastrointestinal illness, but a 1984 report from Essex, England identified septicemic patients who suffered from neurological symptomsThe ranking of serovar Virchow compared to other Salmonella serovars ranged from 4th to 8th place in Switzerland. Annual incidence rates demonstrated minor change during this period, declining from 0.45 per 100,000 people in 2004 to 0.40 per 100,000 in 2009. Children under 5 years of age showed a seven times higher Salmonella Virchow infection rate compared to those above 5 years. In South-East Asia, Europe, and Oceania, serovar Virchow is consistently found within the top 20 Salmonella serovars. Most often,serovar Virchow infection causes gastrointestinal illness, however, in Israel and other countries including US, human infections occur infrequently but demonstrate a high propensity for invasive manifestations. 

NCBI PD link for serovar Virchow: https://www.ncbi.nlm.nih.gov/pathogens/isolates/#(taxgroup_name:%22Salmonella%20enterica%22)%20AND%20computed_types:(%22serotype=Virchow%22)

...