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Toward an understanding of group A streptococcal transmission dynamics using national-level surveillance.

Flores AR, Shelburne SA.

Clin Infect Dis. 2019 Aug 13. pii: ciz718. doi: 10.1093/cid/ciz718. [Epub ahead of print] No abstract available.


Severe emm89 Group A Streptococcal Disease Characterized by Toxic Shock and Endocarditis.

Alramadhan M, Heresi GP, Flores AR.

Case Rep Infect Dis. 2019 Jan 21;2019:6568732. doi: 10.1155/2019/6568732. eCollection 2019.


Complete Genome Sequence of Hypervirulent Streptococcus pyogenesemm3 Strain 1838.

Lei B, Flores AR, Yeoman C, Liu M.

Microbiol Resour Announc. 2019 Jan 10;8(2). pii: e01494-18. doi: 10.1128/MRA.01494-18. eCollection 2019 Jan.


Hypervirulent group A Streptococcus emergence in an acaspular background is associated with marked remodeling of the bacterial cell surface.

Galloway-Peña J, DebRoy S, Brumlow C, Li X, Tran TT, Horstmann N, Yao H, Chen K, Wang F, Pan BF, Hawke DH, Thompson EJ, Arias CA, Fowler VG Jr, Bhatti MM, Kalia A, Flores AR, Shelburne SA.

PLoS One. 2018 Dec 5;13(12):e0207897. doi: 10.1371/journal.pone.0207897. eCollection 2018.


Identification of a chimeric emm gene and novel emm pattern in currently circulating strains of emm4 Group A Streptococcus.

DebRoy S, Li X, Kalia A, Galloway-Pena J, Shah BJ, Fowler VG, Flores AR, Shelburne SA.

Microb Genom. 2018 Nov;4(11). doi: 10.1099/mgen.0.000235. Epub 2018 Nov 9.


Clinical Manifestations and Bacterial Genomic Analysis of Group A Streptococcus Strains That Cause Pediatric Toxic Shock Syndrome.

Deniskin R, Shah B, Muñoz FM, Flores AR.

J Pediatric Infect Dis Soc. 2018 Jul 31. doi: 10.1093/jpids/piy069. [Epub ahead of print]


Capsule-Negative emm Types Are an Increasing Cause of Pediatric Group A Streptococcal Infections at a Large Pediatric Hospital in Texas.

Flores AR, Chase McNeil J, Shah B, Van Beneden C, Shelburne SA 3rd.

J Pediatric Infect Dis Soc. 2018 Aug 1. doi: 10.1093/jpids/piy053. [Epub ahead of print]


Neonatal Bacteremia and Cutaneous Lesions Caused by Photorhabdus luminescens: A Rare Gram-Negative Bioluminescent Bacterium.

Dutta A, Flores AR, Revell PA, Owens L.

J Pediatric Infect Dis Soc. 2018 Aug 17;7(3):e182-e184. doi: 10.1093/jpids/piy064. Review.


Identifying psychological responses of stigmatized groups to referendums.

Flores AR, Hatzenbuehler ML, Gates GJ.

Proc Natl Acad Sci U S A. 2018 Apr 10;115(15):3816-3821. doi: 10.1073/pnas.1712897115. Epub 2018 Mar 26.


Equine ocular mast cell tumor: histopathological and immunohistochemical description.

Flores AR, Azinhaga A, Pais E, Faria F, Nunes F, Gartner F, Amorim I.

J Equine Sci. 2017;28(4):149-152. doi: 10.1294/jes.28.149. Epub 2017 Dec 16.


Prevalence and Capsular Types of Group B Streptococci Colonizing Indian Women Living in the United States.

Chaudhary M, Rench MA, Vyas A, Flores AR, Baker CJ, Edwards MS.

Pediatr Infect Dis J. 2018 Jun;37(6):e175-e177. doi: 10.1097/INF.0000000000001815.


Cluster of Fatal Group A Streptococcal emm87 Infections in a Single Family: Molecular Basis for Invasion and Transmission.

Flores AR, Luna RA, Runge JK, Shelburne SA 3rd, Baker CJ.

J Infect Dis. 2017 Jun 1;215(11):1648-1652. doi: 10.1093/infdis/jix177.


Increased Pilus Production Conferred by a Naturally Occurring Mutation Alters Host-Pathogen Interaction in Favor of Carriage in Streptococcus pyogenes.

Flores AR, Olsen RJ, Cantu C, Pallister KB, Guerra FE, Voyich JM, Musser JM.

Infect Immun. 2017 Apr 21;85(5). pii: e00949-16. doi: 10.1128/IAI.00949-16. Print 2017 May.


Disproportionality and Disparities among Sexual Minority Youth in Custody.

Wilson BDM, Jordan SP, Meyer IH, Flores AR, Stemple L, Herman JL.

J Youth Adolesc. 2017 Jul;46(7):1547-1561. doi: 10.1007/s10964-017-0632-5. Epub 2017 Jan 16.


Incarceration Rates and Traits of Sexual Minorities in the United States: National Inmate Survey, 2011-2012.

Meyer IH, Flores AR, Stemple L, Romero AP, Wilson BD, Herman JL.

Am J Public Health. 2017 Feb;107(2):267-273. doi: 10.2105/AJPH.2016.303576. Epub 2016 Dec 20.


The Contemporary Microbiology and Rates of Concomitant Osteomyelitis in Acute Septic Arthritis.

Branson J, Vallejo JG, Flores AR, Hulten KG, Mason EO, Kaplan SL, McNeil JC.

Pediatr Infect Dis J. 2017 Mar;36(3):267-273. doi: 10.1097/INF.0000000000001417.


Unique Footprint in the scl1.3 Locus Affects Adhesion and Biofilm Formation of the Invasive M3-Type Group A Streptococcus.

Bachert BA, Choi SJ, LaSala PR, Harper TI, McNitt DH, Boehm DT, Caswell CC, Ciborowski P, Keene DR, Flores AR, Musser JM, Squeglia F, Marasco D, Berisio R, Lukomski S.

Front Cell Infect Microbiol. 2016 Aug 31;6:90. doi: 10.3389/fcimb.2016.00090. eCollection 2016.


Transcriptome Remodeling Contributes to Epidemic Disease Caused by the Human Pathogen Streptococcus pyogenes.

Beres SB, Kachroo P, Nasser W, Olsen RJ, Zhu L, Flores AR, de la Riva I, Paez-Mayorga J, Jimenez FE, Cantu C, Vuopio J, Jalava J, Kristinsson KG, Gottfredsson M, Corander J, Fittipaldi N, Di Luca MC, Petrelli D, Vitali LA, Raiford A, Jenkins L, Musser JM.

MBio. 2016 May 31;7(3). pii: e00403-16. doi: 10.1128/mBio.00403-16.


Role of Operative or Interventional Radiology-Guided Cultures for Osteomyelitis.

McNeil JC, Forbes AR, Vallejo JG, Flores AR, Hultén KG, Mason EO, Kaplan SL.

Pediatrics. 2016 May;137(5). pii: e20154616. doi: 10.1542/peds.2015-4616. Epub 2016 Apr 8.


Application of Whole-Genome Sequencing to an Unusual Outbreak of Invasive Group A Streptococcal Disease.

Galloway-Peña J, Clement ME, Sharma Kuinkel BK, Ruffin F, Flores AR, Levinson H, Shelburne SA, Moore Z, Fowler VG Jr.

Open Forum Infect Dis. 2016 Feb 19;3(1):ofw042. doi: 10.1093/ofid/ofw042. eCollection 2016 Jan.


Site-Selective Aliphatic C-H Chlorination Using N-Chloroamides Enables a Synthesis of Chlorolissoclimide.

Quinn RK, Könst ZA, Michalak SE, Schmidt Y, Szklarski AR, Flores AR, Nam S, Horne DA, Vanderwal CD, Alexanian EJ.

J Am Chem Soc. 2016 Jan 20;138(2):696-702. doi: 10.1021/jacs.5b12308. Epub 2016 Jan 6.


The majority of 9,729 group A streptococcus strains causing disease secrete SpeB cysteine protease: pathogenesis implications.

Olsen RJ, Raghuram A, Cantu C, Hartman MH, Jimenez FE, Lee S, Ngo A, Rice KA, Saddington D, Spillman H, Valson C, Flores AR, Beres SB, Long SW, Nasser W, Musser JM.

Infect Immun. 2015 Dec;83(12):4750-8. doi: 10.1128/IAI.00989-15. Epub 2015 Sep 28.


A Single Amino Acid Replacement in the Sensor Kinase LiaS Contributes to a Carrier Phenotype in Group A Streptococcus.

Flores AR, Jewell BE, Yelamanchili D, Olsen RJ, Musser JM.

Infect Immun. 2015 Nov;83(11):4237-46. doi: 10.1128/IAI.00656-15. Epub 2015 Aug 17.


Emergence of Serotype IV Group B Streptococcus Adult Invasive Disease in Manitoba and Saskatchewan, Canada, Is Driven by Clonal Sequence Type 459 Strains.

Teatero S, Athey TB, Van Caeseele P, Horsman G, Alexander DC, Melano RG, Li A, Flores AR, Shelburne SA 3rd, McGeer A, Demczuk W, Martin I, Fittipaldi N.

J Clin Microbiol. 2015 Sep;53(9):2919-26. doi: 10.1128/JCM.01128-15. Epub 2015 Jul 1.


Sequence type 1 group B Streptococcus, an emerging cause of invasive disease in adults, evolves by small genetic changes.

Flores AR, Galloway-Peña J, Sahasrabhojane P, Saldaña M, Yao H, Su X, Ajami NJ, Holder ME, Petrosino JF, Thompson E, Margarit Y Ros I, Rosini R, Grandi G, Horstmann N, Teatero S, McGeer A, Fittipaldi N, Rappuoli R, Baker CJ, Shelburne SA.

Proc Natl Acad Sci U S A. 2015 May 19;112(20):6431-6. doi: 10.1073/pnas.1504725112. Epub 2015 May 4.


Altered expression of claudin-1 is related with malignancy in canine thyroid tumors.

Flores AR, Rêma A, Amorim I, Gartner F.

In Vivo. 2015 Jan-Feb;29(1):23-8.


Natural variant of collagen-like protein a in serotype M3 group a Streptococcus increases adherence and decreases invasive potential.

Flores AR, Jewell BE, Versalovic EM, Olsen RJ, Bachert BA, Lukomski S, Musser JM.

Infect Immun. 2015 Mar;83(3):1122-9. doi: 10.1128/IAI.02860-14. Epub 2015 Jan 5.


Characterization of the effect of the histidine kinase CovS on response regulator phosphorylation in group A Streptococcus.

Horstmann N, Sahasrabhojane P, Saldaña M, Ajami NJ, Flores AR, Sumby P, Liu CG, Yao H, Su X, Thompson E, Shelburne SA.

Infect Immun. 2015 Mar;83(3):1068-77. doi: 10.1128/IAI.02659-14. Epub 2015 Jan 5.


Adhesin competence repressor (AdcR) from Streptococcus pyogenes controls adaptive responses to zinc limitation and contributes to virulence.

Sanson M, Makthal N, Flores AR, Olsen RJ, Musser JM, Kumaraswami M.

Nucleic Acids Res. 2015 Jan;43(1):418-32. doi: 10.1093/nar/gku1304. Epub 2014 Dec 15.


A naturally occurring single amino acid replacement in multiple gene regulator of group A Streptococcus significantly increases virulence.

Sanson M, O'Neill BE, Kachroo P, Anderson JR, Flores AR, Valson C, Cantu CC, Makthal N, Karmonik C, Fittipaldi N, Kumaraswami M, Musser JM, Olsen RJ.

Am J Pathol. 2015 Feb;185(2):462-71. doi: 10.1016/j.ajpath.2014.10.018. Epub 2014 Dec 2.


Clinicopathological significance of immunoexpression of claudin-1 and claudin-7 in feline mammary carcinomas.

Flores AR, Rêma A, Carvalho F, Lopes G, Faustino A, Dias Pereira P.

J Comp Pathol. 2014 Nov;151(4):339-46. doi: 10.1016/j.jcpa.2014.07.006. Epub 2014 Sep 20.


Asymptomatic carriage of group A streptococcus is associated with elimination of capsule production.

Flores AR, Jewell BE, Olsen RJ, Shelburne SA 3rd, Fittipaldi N, Beres SB, Musser JM.

Infect Immun. 2014 Sep;82(9):3958-67. doi: 10.1128/IAI.01788-14. Epub 2014 Jul 14.


Streptococcus mitis strains causing severe clinical disease in cancer patients.

Shelburne SA, Sahasrabhojane P, Saldana M, Yao H, Su X, Horstmann N, Thompson E, Flores AR.

Emerg Infect Dis. 2014 May;20(5):762-71. doi: 10.3201/eid2005.130953.


Molecular characterization of an invasive phenotype of group A Streptococcus arising during human infection using whole genome sequencing of multiple isolates from the same patient.

Flores AR, Sahasrabhojane P, Saldaña M, Galloway-Peña J, Olsen RJ, Musser JM, Shelburne SA.

J Infect Dis. 2014 May 15;209(10):1520-3. doi: 10.1093/infdis/jit674. Epub 2013 Dec 4.


Reduced expression of claudin-2 is associated with high histological grade and metastasis of feline mammary carcinomas.

Flores AR, Rêma A, Carvalho F, Faustino A, Dias Pereira P.

J Comp Pathol. 2014 Feb-Apr;150(2-3):169-74. doi: 10.1016/j.jcpa.2013.09.004. Epub 2013 Nov 9.


Natural variation in the promoter of the gene encoding the Mga regulator alters host-pathogen interactions in group a Streptococcus carrier strains.

Flores AR, Olsen RJ, Wunsche A, Kumaraswami M, Shelburne SA 3rd, Carroll RK, Musser JM.

Infect Immun. 2013 Nov;81(11):4128-38. doi: 10.1128/IAI.00405-13. Epub 2013 Aug 26.


Differential virulence gene expression of group A Streptococcus serotype M3 in response to co-culture with Moraxella catarrhalis.

Verhaegh SJ, Flores AR, van Belkum A, Musser JM, Hays JP.

PLoS One. 2013 Apr 23;8(4):e62549. doi: 10.1371/journal.pone.0062549. Print 2013.


Human disease isolates of serotype m4 and m22 group a streptococcus lack genes required for hyaluronic acid capsule biosynthesis.

Flores AR, Jewell BE, Fittipaldi N, Beres SB, Musser JM.

MBio. 2012 Nov 6;3(6):e00413-12. doi: 10.1128/mBio.00413-12. Review.


Full-genome dissection of an epidemic of severe invasive disease caused by a hypervirulent, recently emerged clone of group A Streptococcus.

Fittipaldi N, Beres SB, Olsen RJ, Kapur V, Shea PR, Watkins ME, Cantu CC, Laucirica DR, Jenkins L, Flores AR, Lovgren M, Ardanuy C, Liñares J, Low DE, Tyrrell GJ, Musser JM.

Am J Pathol. 2012 Apr;180(4):1522-34. doi: 10.1016/j.ajpath.2011.12.037. Epub 2012 Feb 11.


Polymorphisms in regulator of protease B (RopB) alter disease phenotype and strain virulence of serotype M3 group A Streptococcus.

Olsen RJ, Laucirica DR, Watkins ME, Feske ML, Garcia-Bustillos JR, Vu C, Cantu C, Shelburne SA 3rd, Fittipaldi N, Kumaraswami M, Shea PR, Flores AR, Beres SB, Lovgren M, Tyrrell GJ, Efstratiou A, Low DE, Van Beneden CA, Musser JM.

J Infect Dis. 2012 Jun;205(11):1719-29. doi: 10.1093/infdis/jir825. Epub 2012 Jan 18.


Group A Streptococcus emm gene types in pharyngeal isolates, Ontario, Canada, 2002-2010.

Shea PR, Ewbank AL, Gonzalez-Lugo JH, Martagon-Rosado AJ, Martinez-Gutierrez JC, Rehman HA, Serrano-Gonzalez M, Fittipaldi N, Beres SB, Flores AR, Low DE, Willey BM, Musser JM.

Emerg Infect Dis. 2011 Nov;17(11):2010-7. doi: 10.3201/eid1711.110159.


Evolution of diversity in epidemics revealed by analysis of the human bacterial pathogen group A Streptococcus.

Carroll RK, Beres SB, Sitkiewicz I, Peterson L, Matsunami RK, Engler DA, Flores AR, Sumby P, Musser JM.

Epidemics. 2011 Sep;3(3-4):159-70. doi: 10.1016/j.epidem.2011.07.001. Epub 2011 Aug 5.


Rapidly progressive, fatal, inhalation anthrax-like infection in a human: case report, pathogen genome sequencing, pathology, and coordinated response.

Wright AM, Beres SB, Consamus EN, Long SW, Flores AR, Barrios R, Richter GS, Oh SY, Garufi G, Maier H, Drews AL, Stockbauer KE, Cernoch P, Schneewind O, Olsen RJ, Musser JM.

Arch Pathol Lab Med. 2011 Nov;135(11):1447-59. doi: 10.5858/2011-0362-SAIR.1. Epub 2011 Aug 9.


Naturally occurring single amino acid replacements in a regulatory protein alter streptococcal gene expression and virulence in mice.

Carroll RK, Shelburne SA 3rd, Olsen RJ, Suber B, Sahasrabhojane P, Kumaraswami M, Beres SB, Shea PR, Flores AR, Musser JM.

J Clin Invest. 2011 May;121(5):1956-68. doi: 10.1172/JCI45169. Epub 2011 Apr 1.


Distinct signatures of diversifying selection revealed by genome analysis of respiratory tract and invasive bacterial populations.

Shea PR, Beres SB, Flores AR, Ewbank AL, Gonzalez-Lugo JH, Martagon-Rosado AJ, Martinez-Gutierrez JC, Rehman HA, Serrano-Gonzalez M, Fittipaldi N, Ayers SD, Webb P, Willey BM, Low DE, Musser JM.

Proc Natl Acad Sci U S A. 2011 Mar 22;108(12):5039-44. doi: 10.1073/pnas.1016282108. Epub 2011 Mar 7.


Estimated burden of rotavirus-associated diarrhea in ambulatory settings in the United States.

Flores AR, Szilagyi PG, Auinger P, Fisher SG.

Pediatrics. 2010 Feb;125(2):e191-8. doi: 10.1542/peds.2008-1262. Epub 2010 Jan 25.


The twin-arginine translocation pathway of Mycobacterium smegmatis is functional and required for the export of mycobacterial beta-lactamases.

McDonough JA, Hacker KE, Flores AR, Pavelka MS Jr, Braunstein M.

J Bacteriol. 2005 Nov;187(22):7667-79.


Metallic bracket to enamel bonding with a photopolymerizable resin-reinforced glass ionomer.

Flores AR, Sáez E G, Barceló F.

Am J Orthod Dentofacial Orthop. 1999 Nov;116(5):514-7.


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