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Volume 10, Number 10—October 2004
News and Notes

Conference on New and Re-Emerging Infectious Diseases

Roberto Docampo*Comments to Author 
Author affiliation: *University of Illinois at Urbana-Champaign, Illinois, USA

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The seventh annual Conference on New and Re-Emerging Infectious Diseases, April 15–16, 2004, was hosted by the Center for Zoonoses Research and the College of Veterinary Medicine at the University of Illinois at Urbana-Champaign. The conference featured eight speakers and 31 poster presentations.

The conference was opened with a presentation on Yersinia enterocolitica, a gram-negative enteric human pathogen that causes enterocolitis. Invasion is the primary requirement for efficient translocation of the bacteria across the intestinal epithelium; the identification of both positive and negative regulators of its expression have been identified.

The emergence of Mycoplasma gallisepticum, which causes severe conjunctivitis in house finches, was described. The strain of M. gallisepticum that affects house finches, a new host recently introduced to North America, is a novel strain that emerged recently. Current therapies for microsporidiosis, a serious opportunistic infection in persons with AIDS, organ transplant recipients, children, travelers, contact lens wearers, and the elderly, were reviewed.

Studies on the human fungal pathogen Cryptococcus neoformans, which causes life-threatening infections of the central nervous system, most commonly in immunocompromised hosts, were conducted. Studies focus on signaling cascades that govern virulence and an unusual mating type locus linked to differentiation and virulence.

Release of the variant surface antigens of African trypanosomes, agents of a reemerging infectious disease in sub-Saharan Africa, occurs not only by proteolysis but also by glycosylphosphatidylinositol-anchor hydrolysis through a phospholipase present in the parasite surface, was demonstrated.

The human colonic response to Shigella and Entamoeba histolytica at the molecular level, differential transcription of nearly 40,000 human genes in sections of human colonic xenografts that had been infected with Shigella flexneri or E. histolytica were measured. The results indicated increased expression of genes encoding proteins involved in stress, hypoxic responses, immune and inflammatory responses, responses to tissue injury and tissue repair, cytokines, and chemokines.

Studies on sortases, membrane-anchored transpeptidases that cleave surface proteins were described. Because sortases of Staphylococcus aureus are required for animal infections, inhibitors that disrupt the activity of sortases may be therapeutically useful.

The conference was closed with a description of the severe acute respiratory syndrome (SARS) epidemic in China. China’s handling of the epidemic was criticized by the international community, but a balanced view of events has shown that many measures undertaken by officials, such as large-scale quarantines, mandatory fever-screening checkpoints, arrival and departure monitoring at airports, populationwide surveillance, community infection control, and designating SARS-only hospitals, worked effectively to contain this infectious disease.


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DOI: 10.3201/eid1010.040531

Table of Contents – Volume 10, Number 10—October 2004

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Please use the form below to submit correspondence to the authors or contact them at the following address:

Roberto Docampo, Laboratory of Molecular Parasitology, Dept. of Pathobiology, University of Illinois at Urbana-Champaign, 2001 South Lincoln Avenue, Urbana, IL 61802, USA; fax: 217-244-7421

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Page created: April 11, 2011
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