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Peer-reviewed Articles


Stromdahl E, Nadolny R, Gibbons J, Aukland L, Vince M, Elkins C, Murphy M, Hickling G, Eshoo M, Carolan H, Crowder C, Pilgard M, Hamer S. 2015. Borrelia burgdorferi not confirmed in human-biting Amblyomma americanum ticks from the southeastern United States. J Clin Microbiol, in press.

Rodriguez J, Hamer S, Castellanos A, Light J. 2015. Survey of a rodent and tick community in east-central Texas. Southeastern Naturalist, in press.


Stromdahl E, Hamer SA, Jenkins S, Sloan L, Williamson P, Foster E, Nadolny R, Elkins C, Vince M, Pritt B. 2014. Comparison of phenology and pathogen prevalence, including infection with the Ehrlichia muris-like (EML) agent, of Ixodes scapularis removed from soldiers in the midwestern and the northeastern United States over a 15 year period (1997-2012). Parasit Vector. 7:553.

Hamer SA, Hickling GJ, Walker ED, Tsao JI. 2014.  Increased diversity of zoonotic pathogens and Borrelia burgdorferi strains in established versus incipient Ixodes scapularis populations across the Midwestern United States. Infect Genet Evol. 27:532-542.

Tenney T, Curtis R, Snowden KF, Hamer SA. 2014. Shelter dogs as sentinels for widespread Trypanosoma cruzi transmission across Texas. Emerg Infect Dis. 20:1323-1326. (Check out media coverage at NPR, The Scientist, Discover Magazine).


Hamer SA, Bernard AB, Donovan RM, Hartel JA, Wrangham RW, Otali E, Goldberg TL. 2013. Coincident tick infestations in the nostrils of wild chimpanzees and a human in Uganda. Am J Trop Med Hyg 89:924-927. (Check out media coverage at Science, National Geographic, PRI).

Hamer SA, Amuzie CJ, Williams KJ, Smedley RC.  2013.  Pathology in Practice: Infectious laryngotracheitis virus in organic laying chickens, Michigan. J Am Vet Med Assoc.  242:477-479.


Rosen ME, Hamer SA, Gerhardt RR, Jones CJ, Muller LI, Scott MC, Hickling GJ. 2012. Absence of Borrelia burgdorferi in widespread Ixodes scapularis (Acari: Ixodidae) collected from white-tailed deer (Odocoileus virginianus) in Tennessee. J Med Entomol. 49:1473-1480.

Hamer SA, Hickling GJ, Keith R, Sidge JL, Walker ED, Tsao JI. 2012. Associations of passerine birds, rabbits, and ticks with Borrelia miyamotoi and Borrelia andersonii in Michigan, U.S.A. Parasite Vector. 5:231.

Hamer SA, Goldberg TK, Kitron UD, Brawn JD, Anderson TK, Loss SR, Walker ED, Hamer GL. 2012. Wild birds and the urban ecology of ticks and tick-borne pathogens in Chicago, Illinois, USA, 2005-2010. Emerg Infect Dis. 18:1589-1595. (Paper selected as a media highlight).

Margos G, Tsao J, Castillo-Ramírez S, Girard Y, Hamer S, Hoen A, Lane R, Raper S, Ogden N. 2012. Two boundaries separate Borrelia burgdorferi populations in North America. Appl Environ Microbiol. Appl Environ Microbiol. 78:6059-6067.

Hamer SA, EW Lehrer, Magle SB.  2012. Wild birds as sentinels for multiple zoonotic pathogens along an urban to rural gradient in greater Chicago, Illinois. Zoonoses Public Hlth. 59:355-364.

Pepin KM, Eisen RJ, Mead PS, Piesman J, Fish D, Hoen AG, Barbour A, Hamer SA, Diuk-Wasser MA. 2012. Geographic variation in the relationship between human Lyme disease incidence and the density of infected host-seeking Ixodes scapularis nymphs in the US. Am J Trop Med Hyg. 86:1062-1071.

Hamer SA, Hickling GJ, Sidge JL, Walker ED, Tsao JI.  2012.  Synchronous phenology of juvenile Ixodes scapularis, vertebrate host associations, and patterns of Borrelia burgdorferi ribotypes in the midwestern United States.  Ticks Tick Borne Dis.  3:65-75.

Diuk-Wasser, MA, Hoen AG, Cislo P, Brinkerhoff R, Hamer SA, Rowland M, Cortinas R, Vourc'h G, Melton F, Hickling GJ, Tsao JI, Bunikis J, Barbour AG, Kitron U, Piesman J, Fish D. 2012. Human risk of infection with Borrelia burgdorferi, the Lyme disease agent, in eastern United States. Am J Trop Med Hyg. 86:320-327.


Rydzewski J, Mateus-Pinilla N, Warner R, Hamer S, Weng H-Y, Haramis L. 2011. Ixodes scapularis and Borrelia burgdorferi among diverse habitats within a natural area in east-central Illinois. Vector-borne Zoonot 11:1351-1358.

Hamer SA, Hickling GJ, Sidge JL, Rosen ME, Walker ED, Tsao JI. 2011.  Diverse Borrelia burgdorferi strains in a bird-tick cryptic cycle. Appl Environ Microb 77:1999-2007.


Scott C, Rosen M, Hamer S, Baker E, Edwards H, Crowder C, Tsao J, Hickling G. 2010.  High-prevalence Borrelia miyamotoi infection among Wild Turkeys (Meleagris gallopavo) in Tennessee. J Med Ent. 47:1238-42.

Hamer SA, Tsao JI, Walker ED, Hickling GJ.  2010.  Invasion of the Lyme disease vector Ixodes scapularis: implications for Borrelia burgdorferi endemicity. EcoHealth 7:47-63.

Diuk-Wasser MA, Vourc'h G. Cislo P, Gatewood AG, Melton F, Hamer SA, Rowland M, Cortinas MR, Hickling GJ, Tsao JI, Kitron U, Piesman J, Fish D. 2010. Field and climate-based model for predicting the density of the Lyme disease vector Ixodes scapularis in the United States. Global Ecol Biogeogr 19:504-514.


Gatewood AG, Liebman KA, Vourc'h G, Bunikis J, Hamer SA, Cortinas R, Melton F, Cislo P, Kitron U, Tsao J, Barbour AG, Fish D, Diuk-Wasser MA.  2009.  Climate and tick seasonality are predictors of Borrelia burgdorferi genotype distribution.  Appl Environ Micrb. 75:2476-2483.

Hamer SA, Tsao JI, Walker ED, Mansfield LS, Foster ES, Hickling GJ.  2009. Canines as sentinels for emerging Ixodes scapularis-borne zoonoses risk. Am J Vet Res.  70:49-56.


Hamer SA, Hickling GJ, Roy P, Walker ED, Foster ES, Barber CC, and Tsao JI. 2007.  Zoonotic pathogens in Ixodes scapularis, Michigan.  Emerg Infect Dis. 7:1131-1133.


Ward MP, Raim A, Yaremych-Hamer S, Lampman R, and Novak R.  2006.  Does the roosting behavior of birds affect the transmission dynamics of West Nile virus? Am J Trop Med Hyg 75:350-355.

Diuk-Wasser M, Gatewood A, Cortinas R, Yaremych-Hamer S, Tsao J, Kitron U, Hickling G, Walker E, Brownstein J, Piesman J, and Fish D. 2006.  Spatial and temporal patterns of nymphal host-seeking I. scapularis in the United States. J Med Ent  43:166-176.


Yaremych SA, Novak RJ, Raim AJ, Mankin PC, and Warner RE.  2004.  Home range and habitat use by American Crows in east-central Illinois. Wilson Bull, 116:232-239.

Yaremych SA, Levengood JM, Novak RJ, Mankin PC, and Warner RE. 2004.  Gender determination and sex-specific West Nile virus mortality of American Crows. Wildl Soc Bull 32:893-899.

Yaremych SA, Warner RE, Mankin PC, Brawn JD, Raim AJ, and Novak RJ. 2004. West Nile virus and high death rate in American Crows. Emerg Infect Dis. 10:709-711.

Mulvaney RL, Yaremych SA, Khan SA, Swiader JM, and Horgan BP. 2004. Use of diffusion to determine soil cation-exchange capacity by ammonium saturation. Comm Soil Sci Plant Anal.  35:51-67.


Yaremych SA, Warner RE, Van de Wyngaerde MT, Ringia AM, Lampman RL, and Novak RJ. 2003. West Nile virus detection in American Crows.  Emerg Infect Dis. 9:1319-1321.

Book Chapters

Hamer, SA, Cooley TM, Hamer GL. 2011. Avian Diseases. Second Michigan Breeding Bird Atlas.  Available at:

Yaremych SA, Warner RE, Mankin PC, Brawn JD, Raim AJ, and Novak RJ. 2005. West Nile virus causes high mortality in a free-ranging population of American Crows [reprint]. In Wildlife Diseases: Landscape Epidemiology, Spatial Distribution and Utilization of Remote Sensing Technology.  S.K. Majumdar, J. Huffman, F.J. Brenner, and A.I. Panah, editors.  Pennsylvania Academy of Sciences.  Pages 200-204.