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  • David Walker
2016

Epidemiology, molecular biology, and pathogenic mechanisms of Ehrlichia infections

Yu, X. J. & Walker, D., Jan 1 2016, Rickettsiales: Biology, Molecular Biology, Epidemiology, and Vaccine Development. Springer International Publishing, p. 225-240 16 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

1 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
2016

Rickettsia australis activates inflammasome in human and murine macrophages

Smalley, C., Bechelli, J., Rockx-Brouwer, D., Saito, T., Azar, S. R., Ismail, N., Walker, D. H. & Fang, R., Jun 2016, In : PloS one. 11, 6, e0157231.

Research output: Contribution to journalArticle

13 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

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
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
7 Scopus citations
2011

Obligate intracellular bacterium Ehrlichia inhibiting mitochondrial activity

Liu, Y., Zhang, Z., Jiang, Y., Zhang, L., Popov, V. L., Zhang, J., Walker, D. H. & Yu, X. J., Mar 1 2011, In : Microbes and Infection. 13, 3, p. 232-238 7 p.

Research output: Contribution to journalArticle

15 Scopus citations
2012

Immune Mediators of protective and pathogenic immune responses in patients with mild and fatal human monocytotropic ehrlichiosis

Ismail, N., Walker, D. H., Ghose, P. & Tang, Y. W., May 21 2012, In : BMC Immunology. 13, 26.

Research output: Contribution to journalArticle

11 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
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 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
2016
5 Scopus citations
2011

Distinguishing Tropical Infectious Diseases from Bioterrorism

Olano, J. P., Peters, C. J. & Walker, D. H., Dec 1 2011, Tropical Infectious Diseases. Elsevier Inc., p. 879-886 8 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

2014

Pathogenesis of Infectious Diseases and Mechanisms of Immunity

McBride, J. & Walker, D., Dec 9 2014, Vaccinology: An Essential Guide. Wiley Blackwell, p. 59-72 14 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

Quantitative study of Rickettsia massiliae in Rhipicephalus sanguineus organs

Milhano, N., Popov, V., Vilhena, M., Bouyer, D. H., de Sousa, R. & Walker, D. H., Oct 1 2014, In : Ticks and Tick-borne Diseases. 5, 6, p. 709-714 6 p.

Research output: Contribution to journalArticle

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
2017

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

2013

Approaches to vaccines against Orientia tsutsugamushi

Valbuena, G. A. & Walker, D. H., 2013, In : Frontiers in Cellular and Infection Microbiology. 4, JAN, Article 170.

Research output: Contribution to journalReview article

Open Access
40 Scopus citations
2016

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
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

The role of CD8 T lymphocytes in rickettsial infections

Walker, D. H. & Dumler, J. S., May 26 2015, In : Seminars in Immunopathology. 37, 3, p. 289-299 11 p.

Research output: Contribution to journalReview article

15 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
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
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
2014

Inactivation of sam-methyltransferase is the mechanism of attenuation of a historic louse borne typhus vaccine strain

Liu, Y., Wu, B., Weinstock, G., Walker, D. H. & Yu, X. J., Nov 20 2014, In : PloS one. 9, 11, e113285.

Research output: Contribution to journalArticle

3 Scopus citations
2013

Pathogenesis of the viral hemorrhagic fevers

Paessler, S. & Walker, D. H., Jan 2013, In : Annual Review of Pathology: Mechanisms of Disease. 8, p. 411-440 30 p.

Research output: Contribution to journalReview article

147 Scopus citations
2016

Endothelial Activation and Injury: The Mechanisms of Rickettsial Vasculiti

Sahni, A., Narra, H. P., Walker, D. H. & Sahni, S. K., Jan 1 2016, Vascular Responses to Pathogens. Elsevier Inc., p. 111-122 12 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

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
1 Scopus citations
2011

Tropical Infectious Diseases

Guerrant, R., Walker, D. & Weller, P., 2011, Elsevier Inc.

Research output: Book/ReportBook

22 Scopus citations
2013

Compartmentalized, functional role of angiogenin during spotted fever group rickettsia-induced endothelial barrier dysfunction: Evidence of possible mediation by host tRNA-derived small noncoding RNAs

Gong, B., Lee, Y. S., Lee, I., Shelite, T. R., Kunkeaw, N., Xu, G., Lee, K., Jeon, S. H., Johnson, B. H., Chang, Q., Ha, T., Mendell, N. L., Cheng, X., Bouyer, D. H., Boor, P. J., Ksiazek, T. G. & Walker, D. H., Jun 23 2013, In : BMC Infectious Diseases. 13, 1, 285.

Research output: Contribution to journalArticle

23 Scopus citations
2014
13 Scopus citations

Ehrlichia chaffeensis (Human Monocytotropic Ehrlichiosis), Anaplasma phagocytophilum (Human Granulocytotropic Anaplasmosis), and Other Anaplasmataceae

Dumler, J. S. & Walker, D., Aug 28 2014, Mandell, Douglas, and Bennett's Principles and Practice of Infectious Diseases. Elsevier Inc., Vol. 2. p. 2227-2233.e3

Research output: Chapter in Book/Report/Conference proceedingChapter

8 Scopus citations
2011

Fever with thrombocytopenia associated with a novel bunyavirus in China

Yu, X. J., Liang, M. F., Zhang, S. Y., Liu, Y., Li, J. D., Sun, Y. L., Zhang, L., Zhang, Q. F., Popov, V. L., Li, C., Qu, J., Li, Q., Zhang, Y. P., Hai, R., Wu, W., Wang, Q., Zhan, F. X., Wang, X. J., Kan, B., Wang, S. W. & 26 others, Wan, K. L., Jing, H. Q., Lu, J. X., Yin, W. W., Zhou, H., Guan, X. H., Liu, J. F., Bi, Z. Q., Liu, G. H., Ren, J., Wang, H., Zhao, Z., Song, J. D., He, J. R., Wan, T., Zhang, J. S., Fu, X. P., Sun, L. N., Dong, X. P., Feng, Z. J., Yang, W. Z., Hong, T., Zhang, Y., Walker, D. H., Wang, Y. & Li, D. X., Apr 21 2011, In : New England Journal of Medicine. 364, 16, p. 1523-1532 10 p.

Research output: Contribution to journalArticle

721 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
2011
15 Scopus citations
2012

Human ehrlichioses and rickettsioses in Cameroon

Ndip, LN., Ndip, R., Walker, D. H. & McBride, J. W., 2012, Current Topics in Tropical Medicine. p. 25-42

Research output: Chapter in Book/Report/Conference proceedingChapter

2013

Rocky mountain spotted fever and other rickettsioses

Walker, D., Jul 8 2013, 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

2020
2011

Scrub Typhus

Kim, I. S. & Walker, D. H., Dec 1 2011, Tropical Infectious Diseases. Elsevier Inc., p. 334-338 5 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

10 Scopus citations
2019

Ehrlichia chaffeensis outer membrane protein 1-specific human antibody-mediated immunity is defined by intracellular TRIM21-dependent innate immune activation and extracellular neutralization

Velayutham, T. S., Kumar, S., Zhang, X., Kose, N., Walker, D. H., Winslow, G., Crowe, J. E. & McBride, J. W., Dec 1 2019, In : Infection and immunity. 87, 12, e00383-19.

Research output: Contribution to journalArticle

Open Access
1 Scopus citations
2011

Immunohistology of Infectious Diseases

Ezyaguirre, E. J., Walker, D. H. & Zaki, S., Jan 1 2011, Diagnostic Immunohistochemistry. Elsevier Inc., p. 58-82 25 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

3 Scopus citations
2015

The role of Rhipicephalus sanguineus sensu lato saliva in the dissemination of Rickettsia conorii in C3H/HeJ mice

Milhano, N., Saito, T. B., Bechelli, J., Fang, R., Vilhena, M., De Sousa, R. & Walker, D. H., Sep 1 2015, In : Medical and Veterinary Entomology. 29, 3, p. 225-229 5 p.

Research output: Contribution to journalArticle

8 Scopus citations

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
2011

Anthrax

Rao, G. R. & Walker, D. H., Dec 1 2011, Tropical Infectious Diseases. Elsevier Inc., p. 261-264 4 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

2013

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
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
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

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