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Biosafety and biosecurity requirements for Orientia spp. diagnosis and research: recommendations for risk-based biocontainment, work practices and the case for reclassification to risk group 2.

Blacksell SD, Robinson MT, Newton PN, Ruanchaimun S, Salje J, Wangrangsimakul T, Wegner MD, Abdad MY, Bennett AM, Richards AL, Stenos J, Day NPJ.

BMC Infect Dis. 2019 Dec 10;19(1):1044. doi: 10.1186/s12879-019-4653-4.


The temporal dynamics of humoral immunity to Rickettsia typhi infection in murine typhus patients.

Phakhounthong K, Mukaka M, Dittrich S, Tanganuchitcharnchai A, Day NPJ, White LJ, Newton PN, Blacksell SD.

Clin Microbiol Infect. 2019 Oct 31. pii: S1198-743X(19)30558-0. doi: 10.1016/j.cmi.2019.10.022. [Epub ahead of print]


Diagnosis of spotted fever group Rickettsia infections: the Asian perspective.

Robinson MT, Satjanadumrong J, Hughes T, Stenos J, Blacksell SD.

Epidemiol Infect. 2019 Oct 7;147:e286. doi: 10.1017/S0950268819001390.


A review of dengue diagnostics and implications for surveillance and control.

Raafat N, Blacksell SD, Maude RJ.

Trans R Soc Trop Med Hyg. 2019 Nov 1;113(11):653-660. doi: 10.1093/trstmh/trz068.


Comparison of Two Commercial ELISA Kits for the Detection of Anti-Dengue IgM for Routine Dengue Diagnosis in Laos.

Lu Y, Sengvilaipaseuth O, Chanthongthip A, Phonemixay O, Vongsouvath M, Phouminh P, Blacksell SD, Newton PN, Dubot-Pérès A.

Trop Med Infect Dis. 2019 Jul 25;4(3). pii: E111. doi: 10.3390/tropicalmed4030111.


A history of FMD research and control programmes in Southeast Asia: lessons from the past informing the future.

Blacksell SD, Siengsanan-Lamont J, Kamolsiripichaiporn S, Gleeson LJ, Windsor PA.

Epidemiol Infect. 2019 Jan;147:e171. doi: 10.1017/S0950268819000578.


A history of FMD research and control programmes in Southeast Asia: Lessons from the past informing the future.

Blacksell SD, Siengsanan-Lamont J, Kamolsiripichaiporn S, Gleeson LJ, Windsor PA.

Epidemiol Infect. 2019 Apr 5;147. doi: 10.1017/S0950268819000578.


Management of Central Nervous System Infections, Vientiane, Laos, 2003-2011.

Dubot-Pérès A, Mayxay M, Phetsouvanh R, Lee SJ, Rattanavong S, Vongsouvath M, Davong V, Chansamouth V, Phommasone K, Moore C, Dittrich S, Lattana O, Sirisouk J, Phoumin P, Panyanivong P, Sengduangphachanh A, Sibounheuang B, Chanthongthip A, Simmalavong M, Sengdatka D, Seubsanith A, Keoluangkot V, Phimmasone P, Sisout K, Detleuxay K, Luangxay K, Phouangsouvanh I, Craig SB, Tulsiani SM, Burns MA, Dance DAB, Blacksell SD, de Lamballerie X, Newton PN.

Emerg Infect Dis. 2019 May;25(5):898-910. doi: 10.3201/eid2505.180914.


Distribution and Ecological Drivers of Spotted Fever Group Rickettsia in Asia.

Satjanadumrong J, Robinson MT, Hughes T, Blacksell SD.

Ecohealth. 2019 Dec;16(4):611-626. doi: 10.1007/s10393-019-01409-3. Epub 2019 Apr 15. Review.


Clinical Characteristics and Outcome of Children Hospitalized With Scrub Typhus in an Area of Endemicity.

Wangrangsimakul T, Greer RC, Chanta C, Nedsuwan S, Blacksell SD, Day NPJ, Paris DH.

J Pediatric Infect Dis Soc. 2019 Mar 13. pii: piz014. doi: 10.1093/jpids/piz014. [Epub ahead of print]


Determination of Optimal Diagnostic Cut-Offs for the Naval Medical Research Center Scrub Typhus IgM ELISA in Chiang Rai, Thailand.

Phanichkrivalkosil M, Tanganuchitcharnchai A, Jintaworn S, Kantipong P, Laongnualpanich A, Chierakul W, Paris DH, Richards AL, Wangrangsimakul T, Day NPJ, Blacksell SD.

Am J Trop Med Hyg. 2019 May;100(5):1134-1140. doi: 10.4269/ajtmh.18-0675.


The validity of diagnostic cut-offs for commercial and in-house scrub typhus IgM and IgG ELISAs: A review of the evidence.

Saraswati K, Phanichkrivalkosil M, Day NPJ, Blacksell SD.

PLoS Negl Trop Dis. 2019 Feb 4;13(2):e0007158. doi: 10.1371/journal.pntd.0007158. eCollection 2019 Feb.


Diagnosis of Murine Typhus by Serology in Peninsular Malaysia: A Case Report Where Rickettsial Illnesses, Leptospirosis and Dengue Co-Circulate.

Yuhana Y, Tanganuchitcharnchai A, Sujariyakul P, Sonthayanon P, Chotivanich K, Paris DH, Pukrittayakamee S, Blacksell SD, Hanboonkunupakarn B.

Trop Med Infect Dis. 2019 Jan 31;4(1). pii: E23. doi: 10.3390/tropicalmed4010023.


Seroprevalence of Dengue Virus and Rickettsial Infections in Cambodian Children.

Fox-Lewis A, Hopkins J, Sar P, Sao S, Pheaktra N, Day NPJ, Blacksell SD, Turner P.

Am J Trop Med Hyg. 2019 Mar;100(3):635-638. doi: 10.4269/ajtmh.18-0865.


Production diseases in smallholder pig systems in rural Lao PDR.

Holt HR, Inthavong P, Blaszak K, Keokamphe C, Phongmany A, Blacksell SD, Durr PA, Graham K, Allen J, Donnelly B, Newberry K, Grace D, Alonso S, Gilbert J, Unger F.

Prev Vet Med. 2019 Jan 1;162:110-116. doi: 10.1016/j.prevetmed.2018.11.012. Epub 2018 Nov 29.


Impact of glucose-6-phosphate dehydrogenase deficiency on dengue infection in Myanmar children.

May WL, Kyaw MP, Blacksell SD, Pukrittayakamee S, Chotivanich K, Hanboonkunupakarn B, Thein KN, Lim CS, Thaipadungpanit J, Althaus T, Jittamala P.

PLoS One. 2019 Jan 2;14(1):e0209204. doi: 10.1371/journal.pone.0209204. eCollection 2019.


Peste des Petits Ruminants (PPR) virus serological surveillance in goats in Lao PDR: Issues for disease eradication in a low-resource disease-free setting.

Burns RJL, Douangngeun B, Theppangna W, Mukaka M, Wegner MD, Windsor PA, Blacksell SD.

Transbound Emerg Dis. 2019 Mar;66(2):939-947. doi: 10.1111/tbed.13109. Epub 2019 Jan 10.


Assessment of a Rabies Virus Rapid Diagnostic Test for the Detection of Australian Bat Lyssavirus.

Certoma A, Lunt RA, Vosloo W, Smith I, Colling A, Williams DT, Tran T, Blacksell SD.

Trop Med Infect Dis. 2018 Oct 4;3(4). pii: E109. doi: 10.3390/tropicalmed3040109.


Diagnostic Accuracy of the InBios Scrub Typhus Detect™ ELISA for the Detection of IgM Antibodies in Chittagong, Bangladesh.

Blacksell SD, Kingston HWF, Tanganuchitcharnchai A, Phanichkrivalkosil M, Hossain M, Hossain A, Ghose A, Leopold SJ, Dondorp AM, Day NPJ, Paris DH.

Trop Med Infect Dis. 2018 Sep 1;3(3). pii: E95. doi: 10.3390/tropicalmed3030095.


A Review of Laboratory-Acquired Infections in the Asia-Pacific: Understanding Risk and the Need for Improved Biosafety for Veterinary and Zoonotic Diseases.

Siengsanan-Lamont J, Blacksell SD.

Trop Med Infect Dis. 2018 Mar 26;3(2). pii: E36. doi: 10.3390/tropicalmed3020036. Review.


A Tool for Assessment of Animal Health Laboratory Safety and Biosecurity: The Safety Module of the Food and Agriculture Organization's Laboratory Mapping Tool.

Mouillé B, Dauphin G, Wiersma L, Blacksell SD, Claes F, Kalpravidh W, Kabore Y, Hietala S.

Trop Med Infect Dis. 2018 Mar 14;3(1). pii: E33. doi: 10.3390/tropicalmed3010033.


Spotted Fever Rickettsiosis in a Wildlife Researcher in Sabah, Malaysia: A Case Study.

Salgado Lynn M, William T, Tanganuchitcharnchai A, Jintaworn S, Thaipadungpanit J, Lee MH, Jalius C, Daszak P, Goossens B, Hughes T, Blacksell SD.

Trop Med Infect Dis. 2018 Mar 6;3(1). pii: E29. doi: 10.3390/tropicalmed3010029.


A Prospective, Open-label, Randomized Trial of Doxycycline Versus Azithromycin for the Treatment of Uncomplicated Murine Typhus.

Newton PN, Keolouangkhot V, Lee SJ, Choumlivong K, Sisouphone S, Choumlivong K, Vongsouvath M, Mayxay M, Chansamouth V, Davong V, Phommasone K, Sirisouk J, Blacksell SD, Nawtaisong P, Moore CE, Castonguay-Vanier J, Dittrich S, Rattanavong S, Chang K, Darasavath C, Rattanavong O, Paris DH, Phetsouvanh R.

Clin Infect Dis. 2019 Feb 15;68(5):738-747. doi: 10.1093/cid/ciy563.


Causes of acute undifferentiated fever and the utility of biomarkers in Chiangrai, northern Thailand.

Wangrangsimakul T, Althaus T, Mukaka M, Kantipong P, Wuthiekanun V, Chierakul W, Blacksell SD, Day NP, Laongnualpanich A, Paris DH.

PLoS Negl Trop Dis. 2018 May 31;12(5):e0006477. doi: 10.1371/journal.pntd.0006477. eCollection 2018 May.


Risk-based reboot for global lab biosafety.

Kojima K, Booth CM, Summermatter K, Bennett A, Heisz M, Blacksell SD, McKinney M.

Science. 2018 Apr 20;360(6386):260-262. doi: 10.1126/science.aar2231. Epub 2018 Apr 19. No abstract available.


Serosurveillance of Coxiellosis (Q-fever) and Brucellosis in goats in selected provinces of Lao People's Democratic Republic.

Burns RJL, Douangngeun B, Theppangna W, Khounsy S, Mukaka M, Selleck PW, Hansson E, Wegner MD, Windsor PA, Blacksell SD.

PLoS Negl Trop Dis. 2018 Apr 12;12(4):e0006411. doi: 10.1371/journal.pntd.0006411. eCollection 2018 Apr.


Scrub typhus point-of-care testing: A systematic review and meta-analysis.

Saraswati K, Day NPJ, Mukaka M, Blacksell SD.

PLoS Negl Trop Dis. 2018 Mar 26;12(3):e0006330. doi: 10.1371/journal.pntd.0006330. eCollection 2018 Mar. Review.


Rickettsial Illnesses as Important Causes of Febrile Illness in Chittagong, Bangladesh.

Kingston HW, Hossain M, Leopold S, Anantatat T, Tanganuchitcharnchai A, Sinha I, Plewes K, Maude RJ, Chowdhury MAH, Paul S, Uddin RAME, Siddiqui MAN, Zahed AS, Abu Sayeed A, Rahman MH, Barua A, Uddin MJ, Sattar MA, Dondorp AM, Blacksell SD, Day NPJ, Ghose A, Hossain A, Paris DH.

Emerg Infect Dis. 2018 Apr;24(4). doi: 10.3201/eid2404.170190.


Predicting the severity of dengue fever in children on admission based on clinical features and laboratory indicators: application of classification tree analysis.

Phakhounthong K, Chaovalit P, Jittamala P, Blacksell SD, Carter MJ, Turner P, Chheng K, Sona S, Kumar V, Day NPJ, White LJ, Pan-Ngum W.

BMC Pediatr. 2018 Mar 13;18(1):109. doi: 10.1186/s12887-018-1078-y.


Characterization of the rhesus macaque (Macaca mulatta) scrub typhus model: Susceptibility to intradermal challenge with the human pathogen Orientia tsutsugamushi Karp.

Sunyakumthorn P, Somponpun SJ, Im-Erbsin R, Anantatat T, Jenjaroen K, Dunachie SJ, Lombardini ED, Burke RL, Blacksell SD, Jones JW, Mason CJ, Richards AL, Day NPJ, Paris DH.

PLoS Negl Trop Dis. 2018 Mar 9;12(3):e0006305. doi: 10.1371/journal.pntd.0006305. eCollection 2018 Mar.


Strong interferon-gamma mediated cellular immunity to scrub typhus demonstrated using a novel whole cell antigen ELISpot assay in rhesus macaques and humans.

Sumonwiriya M, Paris DH, Sunyakumthorn P, Anantatat T, Jenjaroen K, Chumseng S, Im-Erbsin R, Tanganuchitcharnchai A, Jintaworn S, Blacksell SD, Chowdhury FR, Kronsteiner B, Teparrukkul P, Burke RL, Lombardini ED, Richards AL, Mason CJ, Jones JW, Day NPJ, Dunachie SJ.

PLoS Negl Trop Dis. 2017 Sep 11;11(9):e0005846. doi: 10.1371/journal.pntd.0005846. eCollection 2017 Sep.


Rickettsia gravesii sp. nov.: a novel spotted fever group rickettsia in Western Australian Amblyomma triguttatum triguttatum ticks.

Abdad MY, Abdallah RA, Karkouri KE, Beye M, Stenos J, Owen H, Unsworth N, Robertson I, Blacksell SD, Nguyen TT, Nappez C, Raoult D, Fenwick S, Fournier PE.

Int J Syst Evol Microbiol. 2017 Sep;67(9):3156-3161. doi: 10.1099/ijsem.0.001865. Epub 2017 Aug 31.


Rabies surveillance in dogs in Lao PDR from 2010-2016.

Douangngeun B, Theppangna W, Phommachanh P, Chomdara K, Phiphakhavong S, Khounsy S, Mukaka M, Dance DAB, Blacksell SD.

PLoS Negl Trop Dis. 2017 Jun 1;11(6):e0005609. doi: 10.1371/journal.pntd.0005609. eCollection 2017 Jun.


Integrating market chain assessments with zoonoses risk analysis in two cross-border pig value chains in Lao PDR.

Okello AL, Tiemann TT, Inthavong P, Khamlome B, Phengvilaysouk A, Keonouchanh S, Keokhamphet C, Somoulay V, Blaszak K, Blacksell SD, Okello WO, Allen J.

Asian-Australas J Anim Sci. 2017 Nov;30(11):1651-1659. doi: 10.5713/ajas.16.0887. Epub 2017 Mar 25.


Temperature of a Dengue Rapid Diagnostic Test under Tropical Climatic Conditions: A Follow Up Study.

Sengvilaipaseuth O, Phommasone K, de Lamballerie X, Vongsouvath M, Phonemixay O, Blacksell SD, Mayxay M, Keomany S, Souvannasing P, Newton PN, Dubot-Pérès A.

PLoS One. 2017 Jan 27;12(1):e0170359. doi: 10.1371/journal.pone.0170359. eCollection 2017. Erratum in: PLoS One. 2017 Feb 16;12 (2):e0172658.


A Biological Safety Cabinet Certification Program: Experiences in Southeast Asia.

Whistler T, Kaewpan A, Blacksell SD.

Appl Biosaf. 2016 Sep;21(3):121-127.


Endemic Scrub Typhus in South America.

Weitzel T, Dittrich S, López J, Phuklia W, Martinez-Valdebenito C, Velásquez K, Blacksell SD, Paris DH, Abarca K.

N Engl J Med. 2016 Sep 8;375(10):954-61. doi: 10.1056/NEJMoa1603657.


Seroprevalence of Q Fever, Brucellosis, and Bluetongue in Selected Provinces in Lao People's Democratic Republic.

Douangngeun B, Theppangna W, Soukvilay V, Senaphanh C, Phithacthep K, Phomhaksa S, Yingst S, Lombardini E, Hansson E, Selleck PW, Blacksell SD.

Am J Trop Med Hyg. 2016 Sep 7;95(3):558-561. doi: 10.4269/ajtmh.15-0913. Epub 2016 Jul 18.


Antigenic Relationships among Human Pathogenic Orientia tsutsugamushi Isolates from Thailand.

James SL, Blacksell SD, Nawtaisong P, Tanganuchitcharnchai A, Smith DJ, Day NP, Paris DH.

PLoS Negl Trop Dis. 2016 Jun 1;10(6):e0004723. doi: 10.1371/journal.pntd.0004723. eCollection 2016 Jun.


Using Rapid Diagnostic Tests as a Source of Viral RNA for Dengue Serotyping by RT-PCR - A Novel Epidemiological Tool.

Vongsouvath M, Phommasone K, Sengvilaipaseuth O, Kosoltanapiwat N, Chantratita N, Blacksell SD, Lee SJ, de Lamballerie X, Mayxay M, Keomany S, Newton PN, Dubot-Pérès A.

PLoS Negl Trop Dis. 2016 May 9;10(5):e0004704. doi: 10.1371/journal.pntd.0004704. eCollection 2016 May.


Endemicity of Zoonotic Diseases in Pigs and Humans in Lowland and Upland Lao PDR: Identification of Socio-cultural Risk Factors.

Holt HR, Inthavong P, Khamlome B, Blaszak K, Keokamphe C, Somoulay V, Phongmany A, Durr PA, Graham K, Allen J, Donnelly B, Blacksell SD, Unger F, Grace D, Alonso S, Gilbert J.

PLoS Negl Trop Dis. 2016 Apr 12;10(4):e0003913. doi: 10.1371/journal.pntd.0003913. eCollection 2016 Apr.


The Aetiologies and Impact of Fever in Pregnant Inpatients in Vientiane, Laos.

Chansamouth V, Thammasack S, Phetsouvanh R, Keoluangkot V, Moore CE, Blacksell SD, Castonguay-Vanier J, Dubot-Pérès A, Tangkhabuanbutra J, Tongyoo N, Souphaphonh P, Sengvilaipaseuth O, Vongsouvath M, Phommasone K, Sengdethka D, Seurbsanith A, Craig SB, Hermann L, Strobel M, Newton PN.

PLoS Negl Trop Dis. 2016 Apr 6;10(4):e0004577. doi: 10.1371/journal.pntd.0004577. eCollection 2016 Apr.


Modelling the Impact and Cost-Effectiveness of Biomarker Tests as Compared with Pathogen-Specific Diagnostics in the Management of Undifferentiated Fever in Remote Tropical Settings.

Lubell Y, Althaus T, Blacksell SD, Paris DH, Mayxay M, Pan-Ngum W, White LJ, Day NP, Newton PN.

PLoS One. 2016 Mar 30;11(3):e0152420. doi: 10.1371/journal.pone.0152420. eCollection 2016.


Optimal Cutoff and Accuracy of an IgM Enzyme-Linked Immunosorbent Assay for Diagnosis of Acute Scrub Typhus in Northern Thailand: an Alternative Reference Method to the IgM Immunofluorescence Assay.

Blacksell SD, Lim C, Tanganuchitcharnchai A, Jintaworn S, Kantipong P, Richards AL, Paris DH, Limmathurotsakul D, Day NPJ.

J Clin Microbiol. 2016 Jun;54(6):1472-1478. doi: 10.1128/JCM.02744-15. Epub 2016 Mar 23.


Correction: Rapid Diagnostic Tests for Dengue Virus Infection in Febrile Cambodian Children: Diagnostic Accuracy and Incorporation into Diagnostic Algorithms.

Carter MJ, Emary KR, Moore CE, Parry CM, Sona S, Putchhat H, Reaksmey S, Chanpheaktra N, Stoesser N, Dobson AD, Day NP, Kumar V, Blacksell SD.

PLoS Negl Trop Dis. 2016 Feb 5;10(2):e0004453. doi: 10.1371/journal.pntd.0004453. eCollection 2016 Feb. No abstract available.


Diagnostic Accuracy of the InBios Scrub Typhus Detect Enzyme-Linked Immunoassay for the Detection of IgM Antibodies in Northern Thailand.

Blacksell SD, Tanganuchitcharnchai A, Nawtaisong P, Kantipong P, Laongnualpanich A, Day NP, Paris DH.

Clin Vaccine Immunol. 2015 Dec 9;23(2):148-54. doi: 10.1128/CVI.00553-15. Print 2016 Feb.


Performance of C-reactive protein and procalcitonin to distinguish viral from bacterial and malarial causes of fever in Southeast Asia.

Lubell Y, Blacksell SD, Dunachie S, Tanganuchitcharnchai A, Althaus T, Watthanaworawit W, Paris DH, Mayxay M, Peto TJ, Dondorp AM, White NJ, Day NP, Nosten F, Newton PN, Turner P.

BMC Infect Dis. 2015 Nov 11;15:511. doi: 10.1186/s12879-015-1272-6.


Diagnostic Accuracy Assessment of Immunochromatographic Tests for the Rapid Detection of Antibodies Against Orientia tsutsugamushi Using Paired Acute and Convalescent Specimens.

Watthanaworawit W, Turner P, Turner C, Tanganuchitcharnchai A, Jintaworn S, Hanboonkunupakarn B, Richards AL, Day NPJ, Blacksell SD, Nosten F.

Am J Trop Med Hyg. 2015 Dec;93(6):1168-1171. doi: 10.4269/ajtmh.15-0435. Epub 2015 Oct 12.


Optimal Cutoff Titers for Indirect Immunofluorescence Assay for Diagnosis of Scrub Typhus.

Lim C, Blacksell SD, Laongnualpanich A, Kantipong P, Day NP, Paris DH, Limmathurotsakul D.

J Clin Microbiol. 2015 Nov;53(11):3663-6. doi: 10.1128/JCM.01680-15. Epub 2015 Sep 9.

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