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  • David Walker
2016

An Intradermal Inoculation Mouse Model for Immunological Investigations of Acute Scrub Typhus and Persistent Infection

Soong, L., Mendell, N. L., Olano, J. P., Rockx-Brouwer, D., Xu, G., Goez-Rivillas, Y., Drom, C., Shelite, T. R., Valbuena, G., Walker, D. H. & Bouyer, D. H., Aug 1 2016, In : PLoS neglected tropical diseases. 10, 8, e0004884.

Research output: Contribution to journalArticle

13 Scopus citations

Fatal monocytic ehrlichiosis in woman, Mexico, 2013

Sosa-Gutierrez, C. G., Solorzano-Santos, F., Walker, D. H., Torres, J., Serrano, C. A. & Gordillo-Perez, G., May 2016, In : Emerging infectious diseases. 22, 5, p. 871-874 4 p.

Research output: Contribution to journalArticle

7 Scopus citations
2019

Atg5 supports Rickettsia australis infection in macrophages in vitro and in vivo

Bechelli, J., Vergara, L., Smalley, C., Buzhdygan, T. P., Bender, S., Zhang, W., Liu, Y., Popov, V. L., Wang, J., Garg, N., Hwang, S., Walker, D. H. & Fang, R., Jan 1 2019, In : Infection and immunity. 87, 1, e00651.

Research output: Contribution to journalArticle

9 Scopus citations
2020

Recent research milestones in the pathogenesis of human rickettsioses and opportunities ahead

Narra, H. P., Sahni, A., Walker, D. H. & Sahni, S. K., Jun 1 2020, In : Future Microbiology. 15, p. 753-765 13 p.

Research output: Contribution to journalArticle

2017

Murine models of scrub typhus associated with host control of Orientia tsutsugamushi infection

Mendell, N. L., Bouyer, D. H. & Walker, D. H., Mar 10 2017, In : PLoS neglected tropical diseases. 11, 3, e0005453.

Research output: Contribution to journalArticle

8 Scopus citations
2015

A Tick Vector Transmission Model of Monocytotropic Ehrlichiosis

Saito, T. B. & Walker, D. H., Sep 15 2015, In : Journal of Infectious Diseases. 212, 6, p. 968-977 10 p.

Research output: Contribution to journalArticle

11 Scopus citations
2014

A Hematogenously Disseminated Orientia tsutsugamsushi-Infected Murine Model of Scrub Typhus

Shelite, T. R., Saito, T. B., Mendell, N. L., Gong, B., Xu, G., Soong, L., Valbuena, G., Bouyer, D. H. & Walker, D. H., Jul 2014, In : PLoS neglected tropical diseases. 8, 7, e2966.

Research output: Contribution to journalArticle

21 Scopus citations
2017

A review of the global epidemiology of scrub typhus

Xu, G., Walker, D. H., Jupiter, D., Melby, P. C. & Arcari, C. M., Nov 3 2017, In : PLoS neglected tropical diseases. 11, 11, e0006062.

Research output: Contribution to journalArticle

62 Scopus citations
2013

Simple method to differentiate among Rickettsia species

Peniche-Lara, G., Zavala-Velazquez, J., Dzul-Rosado, K., Walker, D. H. & Zavala-Castro, J., Apr 1 2013, In : Journal of Molecular Microbiology and Biotechnology. 23, 3, p. 203-208 6 p.

Research output: Contribution to journalArticle

8 Scopus citations
2019
Open Access
2 Scopus citations
2014
20 Scopus citations
2012
16 Scopus citations
2019

Vector Tick Transmission Model of Spotted Fever Rickettsiosis

Saito, T. B., Bechelli, J., Smalley, C., Karim, S. & Walker, D. H., Jan 2019, In : American Journal of Pathology. 189, 1, p. 115-123 9 p.

Research output: Contribution to journalArticle

2 Scopus citations
2012

Rickettsia, orientia, ehrlichia, anaplasma and coxiella: Typhus; spotted fevers; scrub typhus; ehrlichioses; Q fever

Walker, D. & Yu, X. J., Jul 23 2012, Medical Microbiology: Eighteenth Edition. Elsevier Inc., p. 390-399 10 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

1 Scopus citations
2016
5 Scopus citations
2014

Rickettsia rickettsii and Other Spotted Fever Group Rickettsiae (Rocky Mountain Spotted Fever and Other Spotted Fevers)

Walker, D. & Blanton, L., Aug 28 2014, Mandell, Douglas, and Bennett's Principles and Practice of Infectious Diseases. Elsevier Inc., Vol. 2. p. 2198-2205 8 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

3 Scopus citations

Omplete genome sequence of Ehrlichia muris strain AS145T, a model monocytotropic Ehrlichia strain

Thirumalapura, N. R., Qin, X., Kuriakose, J. A. & Walker, D., 2014, In : Genome Announcements. 2, 1, e01234-13.

Research output: Contribution to journalArticle

5 Scopus citations
2016

Ehrlichioses: An important one health opportunity

Saito, T. B. & Walker, D. H., Sep 1 2016, In : Veterinary Sciences. 3, 3, 20.

Research output: Contribution to journalReview article

8 Scopus citations
2017

Fibroblast growth factor receptor-1 mediates internalization of pathogenic spotted fever rickettsiae into host endothelium

Sahni, A., Patel, J., Narra, H. P., Schroeder, C. L. C., Walker, D. H. & Sahni, S. K., Aug 2017, In : PloS one. 12, 8, e0183181.

Research output: Contribution to journalArticle

6 Scopus citations

Time to Worry about Anthrax Again

Keim, P. S., Walker, D. & Zilinskas, R. A., Mar 14 2017, In : Scientific American. 316, 4, p. 70-75 6 p.

Research output: Contribution to journalArticle

2018
3 Scopus citations
2015

Rickettsia massiliae and rickettsia conorii israeli spotted fever strain differentially regulate endothelial cell responses

Bechelli, J., Smalley, C., Milhano, N., Walker, D. H. & Fang, R., Sep 22 2015, In : PloS one. 10, 9, e0138830.

Research output: Contribution to journalArticle

5 Scopus citations
2013

Recent molecular insights into rickettsial pathogenesis and immunity

Sahni, S. K., Narra, H. P., Sahni, A. & Walker, D. H., Oct 1 2013, In : Future Microbiology. 8, 10, p. 1265-1288 24 p.

Research output: Contribution to journalReview article

56 Scopus citations
2016

MyD88 mediates instructive signaling in dendritic cells and protective inflammatory response during rickettsial infection

Bechelli, J., Smalley, C., Zhao, X., Judy, B., Valdes, P., Walker, D. H. & Fang, R., Apr 1 2016, In : Infection and immunity. 84, 4, p. 883-893 11 p.

Research output: Contribution to journalArticle

11 Scopus citations
2012

Person-to-person transmission of severe fever with thrombocytopenia syndrome virus

Liu, Y., Li, Q., Hu, W., Wu, J., Weng, Y., Mei, L., Walker, D. H., Ren, J., Wang, Y. & Yu, X. J., Feb 1 2012, In : Vector-Borne and Zoonotic Diseases. 12, 2, p. 156-160 5 p.

Research output: Contribution to journalArticle

147 Scopus citations
2014
17 Scopus citations
2017

Genotypic characterization of Orientia tsutsugamushi from patients in two geographical locations in Sri Lanka

Premaratna, R., Blanton, L., Samaraweera, D. N., de Silva, G. N. N., Chandrasena, N. T. G. A., Walker, D. & de Silva, H. J., Jan 13 2017, In : BMC Infectious Diseases. 17, 1, 67.

Research output: Contribution to journalArticle

5 Scopus citations
2015

Reemergence of murine typhus in galveston, texas, usa, 2013

Blanton, L. S., Vohra, R. F., Bouyer, D. H. & Walker, D. H., Jan 1 2015, In : Emerging infectious diseases. 21, 3, p. 484-486 3 p.

Research output: Contribution to journalArticle

23 Scopus citations
2019
6 Scopus citations
2013

Recombinant Ehrlichia P29 protein induces a protective immune response in a mouse model of ehrlichiosis

Thirumalapura, N. R., Crocquet-Valdes, P. A., Saito, T. B., Thomas, S., McBride, J. W. & Walker, D. H., Dec 5 2013, In : Vaccine. 31, 50, p. 5960-5967 8 p.

Research output: Contribution to journalArticle

3 Scopus citations
2016

Opossums and cat fleas: New insights in the ecology of murine typhus in Galveston, Texas

Blanton, L., Idowu, B. M., Tatsch, T. N., Henderson, J. M., Bouyer, D. & Walker, D., Aug 1 2016, In : American Journal of Tropical Medicine and Hygiene. 95, 2, p. 457-461 5 p.

Research output: Contribution to journalArticle

27 Scopus citations
2018

Chlamydial, Mycoplasmal, Rickettsial, and Ehrlichial Diseases

Walker, D. H., Jan 1 2018, Pulmonary Pathology: A Volume in the Series: Foundations in Diagnostic Pathology. Elsevier Inc., p. 315-326 12 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

2014

Rickettsia felis and changing paradigms about pathogenic rickettsiae

Labruna, M. B. & Walker, D. H., Oct 1 2014, In : Emerging infectious diseases. 20, 10, p. 1768-1769 2 p.

Research output: Contribution to journalLetter

20 Scopus citations
2015

An animal model of a newly emerging human ehrlichiosis

Saito, T. B., Thirumalapura, N. R., Shelite, T. R., Rockx-Brouwer, D., Popov, V. L. & Walker, D. H., Feb 1 2015, In : Journal of Infectious Diseases. 211, 3, p. 452-461 10 p.

Research output: Contribution to journalArticle

13 Scopus citations
2013

Review article: Unresolved problems related to scrub typhus: A seriously neglected life-threatening disease

Paris, D. H., Shelite, T. R., Day, N. P. & Walker, D. H., Aug 2013, In : American Journal of Tropical Medicine and Hygiene. 89, 2, p. 301-307 7 p.

Research output: Contribution to journalReview article

127 Scopus citations

Exchange protein directly activated by cAMP plays a critical role in bacterial invasion during fatal rickettsioses

Gong, B., Shelite, T., Mei, F. C., Ha, T., Hu, Y., Xu, G., Chang, Q., Wakamiya, M., Ksiazek, T. G., Boor, P. J., Bouyer, D. H., Popov, V. L., Chen, J., Walker, D. H. & Cheng, X., Nov 26 2013, In : Proceedings of the National Academy of Sciences of the United States of America. 110, 48, p. 19615-19620 6 p.

Research output: Contribution to journalArticle

46 Scopus citations
2017

CD8+T cells provide immune protection against murine disseminated endotheliotropic Orientia tsutsugamushi infection

Xu, G., Mendell, N. L., Liang, Y., Shelite, T. R., Goez-Rivillas, Y., Soong, L., Bouyer, D. H. & Walker, D. H., Jul 19 2017, In : PLoS neglected tropical diseases. 11, 7, e0005763.

Research output: Contribution to journalArticle

12 Scopus citations
2013

Approaches to vaccines against Orientia tsutsugamushi

Valbuena, G. & Walker, D. H., 2013, In : Frontiers in cellular and infection microbiology. 4, JAN, Article 170.

Research output: Contribution to journalArticle

Spotted fever group Rickettsia in small rodents from areas of low endemicity for Brazilian spotted fever in the Eastern Region of Minas Gerais State, Brazil

Milagres, B. S., Padilha, A. F., Montandon, C. E., Freitas, R. N., Pacheco, R., Walker, D. H., Labruna, M. B., Mafra, C. L. & Galvão, M. A. M., May 2013, In : American Journal of Tropical Medicine and Hygiene. 88, 5, p. 937-939 3 p.

Research output: Contribution to journalArticle

7 Scopus citations
2019

A cluster of cases of rocky mountain spotted fever in an area of Colombia not known to be endemic for this disease

Londoño, A. F., Arango-Ferreira, C., Acevedo-Gutiérrez, L. Y., Paternina, L. E., Montes, C., Ruiz, I., Labruna, M. B., Díaz, F. J., Walker, D. H. & Rodas, J. D., 2019, In : American Journal of Tropical Medicine and Hygiene. 101, 2, p. 336-342 7 p.

Research output: Contribution to journalArticle

1 Scopus citations
2012

Pathogenesis of lassa fever

Yun, N. E. & Walker, D. H., Oct 2012, In : Viruses. 4, 10, p. 2031-2048 18 p.

Research output: Contribution to journalReview article

85 Scopus citations

Rocky mountain spotted fever and other rickettsioses

Walker, D., May 15 2012, Schaechter's Mechanisms of Microbial Disease: Fifth Edition. Wolters Kluwer Health Adis (ESP), p. 301-307 7 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

2019

Rickettsiae Within the Fleas of Feral Cats in Galveston, Texas

Blanton, L. S., Vohra, R. F., Fistein, L., Quade, B., Walker, D. H. & Bouyer, D. H., Sep 2019, In : Vector-Borne and Zoonotic Diseases. 19, 9, p. 647-651 5 p.

Research output: Contribution to journalArticle

4 Scopus citations
2015

Permissive and protective roles for neutrophils in leishmaniasis

Carlsen, E. D., Liang, Y., Shelite, T. R., Walker, D. H., Melby, P. C. & Soong, L., Nov 2015, In : Clinical and Experimental Immunology. 182, 2, p. 109-18

Research output: Contribution to journalArticle

28 Scopus citations
2019

Burkholderia pseudomallei ΔtonB Δhcp1 live attenuated vaccine strain elicits full protective immunity against aerosolized melioidosis infection

Khakhum, N., Bharaj, P., Myers, J. N., Tapia, D., Kilgore, P. B., Ross, B. N., Walker, D. H., Endsley, J. J. & Torresa, A. G., Jan 1 2019, In : mSphere. 4, 1, e00570-18.

Research output: Contribution to journalArticle

7 Scopus citations
2012

New insight into immunity and immunopathology of Rickettsial diseases

Mansueto, P., Vitale, G., Cascio, A., Seidita, A., Pepe, I., Carroccio, A., Di Rosa, S., Rini, G. B., Cillari, E. & Walker, D. H., 2012, In : Clinical and Developmental Immunology. 2012, 967852.

Research output: Contribution to journalReview article

80 Scopus citations
2014

Ehrlichia

Thirumalapura, N. R. & Walker, D., Nov 26 2014, Molecular Medical Microbiology: Second Edition. Elsevier Ltd, Vol. 3. p. 2011-2032 22 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

2015
7 Scopus citations
2014

Diseases Caused by Fungi

Walker, D. H. & McGinnis, M. R., Jan 1 2014, Pathobiology of Human Disease: A Dynamic Encyclopedia of Disease Mechanisms. Elsevier Inc., p. 217-221 5 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

Rickettsia typhi (Murine Typhus)

Blanton, L., Dumler, J. S. & Walker, D., Aug 28 2014, Mandell, Douglas, and Bennett's Principles and Practice of Infectious Diseases. Elsevier Inc., Vol. 2. p. 2221-2224.e2

Research output: Chapter in Book/Report/Conference proceedingChapter

5 Scopus citations