Abstract
Orientia tsutsugamushi is the causative agent of scrub typhus vectored by larval stages of trombiculid mites (chiggers) that occur in most tropical regions of Southeast Asia. A total of 242 chiggers extracted from eight small mammals captured from a positive scrub typhus locality in Kelantan, Malaysia, were screened for the presence of O. tsutsugamushi. The chiggers were grouped in 16 pools for extraction of DNA prior to screening of O. tsutsugamushi based on the nucleotide sequence of 56-kDa type specific antigen (TSA) gene using nested polymerase chain reaction. Two species of on-host chiggers were identified, the one, Leptotrombidium deliense, much more dominant (94.8%) than the other, Ascoshoengastia sp. (5.2%). The pathogen was detected in two pools (12.5%) of L. deliense recovered from Rattus rattus and Tupaia sp. The 56-kDa TSA gene sequence analysis revealed the O. tsutsugamushi harboured in those chiggers were Karp prototype strain with high similarity (99.3%). Findings of this study strongly supported the existence of scrub typhus infections in certain parts of Malaysia which agrees with previous local reports. Moreover, this study highlighted the pressing need of a large-scale close observation of O. tsutsugamushi DNA sequences from chiggers that can probably be collected from other positive scrub typhus localities to precisely provide the distribution and prevalence of this zoonotic pathogen.
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References
Bonell A, Lubell Y, Newton PN, Crump JA, Paris DH (2017) Estimating the burden of scrub typhus: a systematic review. PLoS Negl Trop Dis 11(9):e0005838
Brown GW, Robinson DM, Huxsoll DL, Ng TS, Lim KJ (1976) Scrub typhus: a common cause illness in indigenous populations. Trans R Soc Trop Med Hyg 70(5–6):444–448
Chaisiri K, Cosson JF, Morand S (2017) Infection of rodents by Orientia tsutsugamushi, the agent of scrub typhus, in relation to land use in Thailand. Trop Med Infect Dis 2(4):53
Chaisiri K, Christina-Gill A, Stekolnikov AA, Hinjoy S, McGarry JW, Darby AC, Morand S, Makepeace BL (2019) Ecological and microbiological diversity of chigger mites, including vectors of scrub typhus, on small mammals across stratified habitats in Thailand. Animal Microbiome 1:18
Chakraborty S, Sarma N (2017) Scrub typhus: an emerging threat. Indian J Dermatol 62(5):478–485
Ching WM, Rowland D, Zhang Z, Bourgeois AL, Kelly D, Dasch GA, Devine PL (2001) Early diagnosis of scrub typhus with a rapid flow assay using recombinant major outer membrane protein antigen (r56) of Orientia tsutsugamushi. Clin Diagn Lab Immunol 8(2):409–414
Cosson JF, Galan M, Bard E, Razzauti M, Bernard M, Morand S, Brouat C, Dalecky A, Charbonnel N, Vayssier-Taussat M (2015) Detection of Orientia sp DNA in rodents from Asia West Africa and Europe. Parasit Vectors 8:172
Elliot I, Pearson I, Dahal P, Thomas NV, Roberts T, Newton PN (2019) Scrub typhus ecology: a systematic review of Orientia in vectors and hosts. Parasit Vectors 12:513
Fletcher W, Field JW (1927) The tsutsugamushi disease in the Federated Malay States. Bull Inst Med Res 1:1–26
Fournier PE, Siritantikorn S, Rolain JM, Suputtamongkol Y, Hoontrakul S, Charoenwat S, Losuwanaluk K, Parola P, Raoult D (2008) Detection of new genotypes of Orientia tsutsugamushi infecting humans in Thailand. Clin Microb Infect 14(2):168–173
Frances SP, Watcharapichat P, Phulsuksombati D, Tanskul P (2001) Investigation of the role of Blankaartia acuscutellaris (Acari: Trombiculidae) as a vector of scrub typhus in central Thailand. Southeast Asian J Trop Med Public Health 32(4):863–866
Francis CM (2019) Field guide to the mammals of South-east Asia (2nd Edition). Bloomsbury Wildl, London, p 416
Furuya Y, Yoshida Y, Katayama T, Yamamoto S, Kawamura A (1993) Serotype-specific amplification of Rickettsia tsutsugamushi DNA by nested polymerase chain reaction. J Clin Microbiol 31(6):1637–1640
Hall TA (1999) BioEdit: a user-friendly biological sequence alignment editor and analysis program for Window 95/98/NT. Nucleic Acids Symp Ser 41:95–98
Hanifah AL, Mariana A, Vishalani VN, Ho TM (2013) Detection of Orientia tsutsugamushi in chiggers and tissue of small mammals using Polymerase Chain Reaction. The Exp 11(2):683–689
Huxsoll DL (1978) Scrub typhus- A problem in Malaysia? Malaysian J Path 1:1–6
Kala D, Gupta S, Nagraik R, Verma V, Thakur A, Kaushal A (2020) Diagnosis of scrub typhus: recent advancements and challenges. 3 Biotech 10(9):396
Kelly DJ, Fuerst PA, Ching WM, Richards AL (2009) Scrub typhus: the geographic distribution of phenotypic and genotypic variants of Orientia tsutsugamushi. Clin Infect Dis 48:S203–S230
Kim DM, Yun NR, Yang TY, Lee JH, Yang JT, Shim SK, Choi EN, Park MY, Lee SH (2006) Usefulness of nested PCR for diagnosis of scrub typhus in clinical practice: a prospective study. Am J Trop Med Hyg 75(3):542–545
Kocher C, Jiang J, Morrison AC, Castillo R, Leguia M, Loyola S, Ampuero S, Bausch DG, Richard AL (2017) Scrub typhus in the Peruvian Amazon Basin. Emerg Infect Dis 23:1389–1391
Koh GC, Maude RJ, Paris DH, Newton PN, Blacksell SD (2010) Diagnosis of scrub typhus. Am J Trop Med Hyg 82:368–370
Kumar S, Stecher G, Tamura K (2016) MEGA7: molecular evolutionary genetics analysis version 7.0 for bigger datasets. Mol Biol Evol 33(7):1870–1874
Kuo CC, Lee PL, Chen CH, Wang HC (2015) Surveillance of potential hosts and vectors of scrub typhus in Taiwan. Parasit Vectors 8:611
Larkin MA, Blackshields G, Brown NP, Chenna R, McGettigan PA, McWilliam H, Valentin F, Wallace IM, Wilm A, Lopez R, Thompson JD, Gibson TJ, Higgins DG (2007) Clustal W and Clustal X version 2.0. Bioinformatics 23:2947–2948
Lerdthusnee K, Khlaimanee N, Monkanna T, Sangjun N, Mungviriya S, Linthicum KJ, Frances SP, Kollars TM Jr, Coleman RE (2002) Efficiency of Leptotrombidium chiggers (Acari: Trombiculidae) at transmitting Orientia tsutsugamushi to laboratory mice. J Med Entomol 39(3):521–525
Lin PR, Tsai HP, Tsui PY, Weng MH, Kuo MD, Lin HC, Chen KC, Ji DD, Chu DM, Liu WT (2011) Genetic typing, based on the 56-Kilodalton type-specific antigen gene, of Orientia tsutsugamushi strains isolated from chiggers collected from wild-caught rodents in Taiwan. Appl Envt Microbiol 77(10):3398–3405
Lv Y, Guo XG, Jin DC (2018) Research progress on Leptotrombidium deliense. Korean J Parasitol 56(4):313–324
Lyu Y, Tian L, Zhang L, Dou X, Wang X, Li W, Zhang X, Sun Y, Guan Z, Li X, Wang Q (2013) A case-control study of risk factors associated with scrub typhus infection in Beijing China. PLoS ONE 8(5):e63668
Mariana A, Mohd Kulaimi B, Suhaili ZA, Shahrul-Anuar MS, Zalipah MN, Ho TM (2011) Acarine ectoparasites of Panti Forest Reserve in Johore Malaysia. Asian Pac J Trop Biomed 1(1):1–5
Medway L (1983) The wild mammals of Malaya (Peninsular Malaysia and Singapore). Oxford University Press, Kuala Lumpur
Nadchatram M (1970) Correlation of habitat, environment and color of chiggers, and their potential significance in the epidemiology of scrub typhus in Malaya (Prostigmata: Trombiculidae). J Med Entomol 7:131–144
Nadchatram M (2008) The beneficial rain forest ecosystem with environmental effects on zoonoses involving ticks and mites, a Malaysian perspective and review. Trop Biomed 25(2):1–92
Nadchatram M, Dohany AL (1974) A pictorial key to the subfamilies, genera and subgenera of Southeast Asian chiggers. Bulletin Inst Med Res Malays 16:1–67
Osuga K, Kimura M, Goto H, Shimada K, Suto T (1991) A case of tsutsugamushi disease probably contracted in Africa. Eur J Clin Microbiol Infect Dis 10:95–96
Paramasvaran S, Sani RA, Hassan L, Krishnasamy M, Jeffery J, Oothuman P, Salleh I, Lim KH, Sumarni MG, Santhana RL (2009) Ectoparasite fauna of rodents and shrews from four habitats in Kuala Lumpur and the states of Selangor and Negeri Sembilan, Malaysia and its public health significance. Trop Biomed 26(3):303–311
Paris DH, Shelite TR, Day NP, Walker D (2013) Unresolved problem related to scrub typhus: a seriously neglected life-threatening diseases. Am J Trop Med Hyg 89:301–307
Patricia KA, Hoti SL, Kanungo R, Jambulingam P, Shashikala N, Naik AC (2017) Improving the diagnosis of scrub typhus by combining groEL based polymerase chain reaction and IgM ELISA. J Clin Diag Res 11(8):27–313
Payne J, Francis CM, Phillips K (2005) A field guide to the mammals of Borneo. Sabah Society, Kota Kinabalu, p 332
Phommasone K, Paris DH, Anantatat T, Castonguay-Vanier J, Keomany S, Souvannasing P, Blacksell SD, Mayxay M, Newton PN (2013) Concurrent infection with murine typhus and scrub typhus in Southern Laos—the mixed and the unmixed. PLoS Negl Trop Dis 7(8):e2163
Rajapakse S, Weeratunga P, Sivayoganathan S, Fernando SD (2017) Clinical manifestation of scrub typhus. Trans R Soc Trop Med Hyg 111:43–54
Richard AL, Jiang J (2020) Scrub typhus: historic perspective and status of the worldwide presence of Orientia species. Trop Med Infect Dis 5(2):49
Rodkvamtook W, Ruang-areerate T, Gaywee J, Richards AL, Jeamwattanalert P, Bodhidatta D, Sangjun N, Prasartvit A, Jatisatienr A, Jatisatienr C (2011) Isolation and characterization of Orientia tsutsugamushi from rodents captured following a scrub typhus outbreak at a Military Training Base, Bothong District, Chinburi Province, Central Thailand. Am J Trop Med Hyg 84(4):599–607
Ruang-areerate T, Jeamwattanalert P, Rodkvamtook W, Richards AL, Sunyakumthorn P, Gaywee J (2011) Genotype diversity and distribution of Orientia tsutsugamushi causing scrub typhus in Thailand. J Clin Microbiol 49(7):2584–2589
Santibañez P, Palomar A, Portillo A, Santibañez S, Oteo JA (2015) The role of chiggers as human pathogens. In: Samie A (ed) An Overview of Tropical Diseases. Intech Open Limited, London, pp 173–202
Saraswati K, Day NP, Mukaka M, Blacksell SD (2018) Scrub typhus point-of-care testing: a systematic review and meta-analysis. PLoS Negl Trop Dis 12:e0006330
Sasa M (1954) Comparative epidemiology of Tsutsugamushi disease in Japan. Jpn J Exp Med 24:335–361
Shirai A, Dohany AL, Ram S, Chiang GL, Huxsoll DL (1981) Serological classification of Rickettsia tsutsugamushi organisms found in chiggers (Acarina: Trombiculidae) collected in Peninsular Malaysia. Trans R Soc Trop Med Hyg 75:580–582
Shirai A, Robinson DM, Brown GW, Gan E, Huxsoll DL (1979) Antigenic analysis by direct immuno-fluorecence of 114 isolates of Rickettsia tsutsugamushi recovered from febrile patients in rural Malaysia. Jpn J Med Sci Biol 32:337–344
Shivalli S (2016) Diagnostic evaluation of rapid tests for scrub typhus in the Indian population is needed. Infect Dis Poverty 5:40
Takhampunya R, Korkusol A, Promsathaporn S, Tippayachai B, Leepitakrat S, Richards AL, Davidson SA (2018) Heterogeneity of Orientia tsutsugamushi genotypes in field-collected trombiculid mites from wild-caught small mammals in Thailand. PLoS Negl Trop Dis 12(7):e0006632
Takhampunya R, Tippayachai B, Promsathaporn S, Leepitakrat S, Monkanna T, Schuster AL, Melendrez MC, Paris DH, Richards AL, Richardson JH (2014) Characterization based on the 56-kDa type-specific antigen gene of Orientia tsutsugamushi genotypes isolated from Leptotrombidium mites and the rodents host post-infection. Am J Trop Med Hyg 90(1):139–146
Tanskul P, Strickman D, Eamsila C, Kelly DJ (1994) Rickettsia tsutsugamushi in chiggers (Acari: Trombiculidae) associated with rodents in central Thailand. J Med Entomol 31(2):225–230
Tantibhedhyangkul W, Wongsawat E, Silpasakorn S, Waywa D, Saenyasiri N, Suesuay J, Thipmontree W, Suputtamongkol Y (2017) Use of multiplex real-time PCR to diagnose scrub typhus. J Clin Microbiol 55(5):1377–1387
Tay ST, Mohamed Zan HA, Lim YAL, Ngui R (2013) Antibody prevalence and factors associated with exposure to Orientia tsutsugamushi in different aboriginal subgroups in West Malaysia. PLoS Negl Trop Dis 7(8):e2341
Tay ST, Ho TM, Rohani MY, Devi S (2000) Antibodies to Orientia tsutsugamushi, Rickettsia typhi and spotted fever group rickettsiae among febrile patients in rural areas of Malaysia. Trans R Soc Trop Med Hyg 94:280–284
Taylor AJ, Paris DH, Newton PN (2015) A systematic review of mortality from untreated scrub typhus (Orientia tsutsugamushi). PLoS Negl Trop Dis 9(8):e0003971
TraubWisseman RCL Jr (1974) The ecology of chigger-borne rickettsioses (scrub typhus). J Med Entomol 11:237–303
Trung NV, Hi LT, Cuong DD, Ha DT, Hoa TM, Lien VN, Hoa NT (2019) Analysis of the 56-kDa type specific antigen gene of Orientia tsutsugamushi from northern Vietnam. PLoS ONE 14(8):e0221588
Wangrangsimakul T, Elliott I, Nedsuwan S, Kumlert R, Hinjoy S, Chaisiri K, Day NPJ, Morand S (2020) The estimated burden of scrub typhus in Thailand from national surveillance data (2003–2018). PLoS Negl Trop Dis 14(4):e0008233
Weitzel T, Dittrich S, Lopez J, Phuklia W, Martinez-Valdebenito C, Velasquez K, Blacksell SD, Paris DH, Abarca K (2016) Endemic scrub typhus in South America. N Engl J Med 375(10):954–961
Yathramullage S, Rajapakse J, Boyagoda S (2018) Rickettsiae reservoirs among small mammals (rats, mice and shrews) and their arthropod vectors in Sri Lanka. Ceylon J Sci 47(2):175–183
Zan HAM, Ponnampalavanar S, Omar SFS, Savithiri PD, Lim YAL, Tay ST (2016) Genetic variants of Orientia tsutsugamushi identified from scrub typhus cases in Malaysia. Trop Med 33(1):203–208
Zhang M, Zhao ZT, Yang HL, Zhang AH, Xu XQ, Meng XP, Zhang HY, Wang XJ, Li Z, Ding SJ, Yang L, Zhang LY (2013) Molecular epidemiology of Orientia tsutsugamushi in chiggers and ticks from domestic rodents in Shadong, northern China. Parasit Vectors 6:312
Acknowledgements
The authors would like to thank the Director-General of Health Malaysia for his permission to publish this article. We wish to thank the entomologists from Kelantan State Health Department, Ms Sharifah Nadwah Md Yunus, Ms Nur Akmarina Mohd Noordin and Ms Suraya Sulaiman for their assistance in the field and the collection of the samples.
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Ernieenor, F.C.L., NorJaiza, M.J., Fadillah, A. et al. Screening and genotyping of Orientia tsutsugamushi from field-collected on-host chiggers (Acari: Prostigmata) recovered from a positive scrub typhus locality in Kelantan, Malaysia. Exp Appl Acarol 84, 171–182 (2021). https://doi.org/10.1007/s10493-021-00609-3
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DOI: https://doi.org/10.1007/s10493-021-00609-3