2025

Dey RK, Mosler F, Adam R, Ali I, Sausan A, Jaleel Z, Mahir R, Habeeb IA, Maeesha A, Rasheed NA, Aroosha A, Matsee W, Imad HA. Clinical features and outcomes of dengue and scrub typhus in hospitalized adults in the Maldives. Travel Med Infect Dis. 2025 Oct 1;68:102914.

Chantapinya P, Charoensakulchai S, Imad HA, Caumes E. Local and travel-associated Zika virus infections in Thailand, 2013-2025. J Travel Med. 2025 Sep 15:taaf097.

Charoenwisedsil R, Soravipukuntorn T, Panyatanakun K, Pisutsan P, Looareesuwan P, Asawapaithulsert P, Imad HA, Schneitler S, Piyaphanee W, Matsee W. Travel-related potential rabid animal post-exposure consultation at the Thai Travel Clinic, Hospital for Tropical Diseases, Bangkok, Thailand. Travel Med Infect Dis. 2025 Jul-Aug;66:102870.

Rapheal E, Kitro A, Imad H, Hamins-Peurtolas M, Olanwijitwong J, Chatapat L, Hunsawong T, Anderson K, Piyaphanee W. Force of Infection Model for Estimating Time to Dengue Virus Seropositivity among Expatriate Populations, Thailand. Emerg Infect Dis. 2025 Jun;31(6):1149-1157.

Charoensakulchai S, Matsuno K, Nakayama EE, Shioda T, Imad HA. Epidemiological Characteristics of Severe Fever with Thrombocytopenia Syndrome. Am J Trop Med Hyg. 2025 Feb 18;112(5):956-962.

Ali QM, Imad HA, Rodriguez-Morales AJ, Matsee W. Risk of Oropouche virus importation to Southeast Asia via international travelers. J Travel Med. 2025 Mar 11;32(2):taaf009.

2024

Arce N Jr, Boonnak K, Bernasor LT, Salas CJ, Putri A, Aung PL, Imad HA, Chierakul W, Luvira V, Phonrat B, Phumratanaprapin W, Charunwatthana P. Clinical and Epidemiological Characteristics of Chikungunya and Dengue Infections in Provincial Hospitals of Davao de Oro, Philippines. Reports (MDPI). 2024 Dec 11;7(4):112.

Kumpitak C, Duangmanee A, Thongyod W, Rachaphaew N, Suansomjit C, Manopwisedjaroen K, Aung PL, Imad HA, Cui L, Sattabongkot J, Nguitragool W, Bantuchai S. Human-to-Anopheles dirus mosquito transmission of the anthropozoonotic malaria parasite, Plasmodium knowlesi. Parasit Vectors. 2024 Oct 4;17(1):415. doi: 10.1186/s13071-024-06500-5. Erratum in: Parasit Vectors. 2025 Sep 29;18(1):395.

Imad HA, Putri A, Charoenwisedsil R, Charoensakulchai S, Caumes E. Febrile Rash: An Early Diagnostic Clue to Infectious Illness in Travelers Returning from Thailand. Reports (MDPI). 2024 Jun 7;7(2):45.

Imad HA, Garcia GJD, Martinez GG, Asawapaithulsert P, Thippornchai N, Leaungwutiwong P, Piyaphanee W, Silachamroon U, Charunwatthana P. Zika infection among international students after five months in Thailand. J Travel Med. 2024 Jun 3;31(4):taae068.

Keltner C, Causbie J, Haynes R, Mandia J, Imad H, Matsee W. Surveillance cystoscopy for atypical Schistosoma haematobium infection associated with recurrent UTIs. Travel Med Infect Dis. 2024 May-Jun;59:102702.

Kitro A, Imad HA, Pisutsan P, Matsee W, Sirikul W, Sapbamrer R, Rapheal E, Fernandez S, Cotrone TS, Farmer AR, Hunsawong T, Silachamroon U, Chatapat L, Olanwijitwong J, Salee P, Anderson KB, Piyaphanee W. Seroprevalence of dengue, Japanese encephalitis and Zika among long-term expatriates in Thailand. J Travel Med. 2024 Mar 1;31(2):taae022.

Putri A, Charoenwisedsil R, Techavachara N,Imad H, Chinpraditsuk S, Thaipadungpanit J, Matsee W. Severe leptospirosis with rhabdomyolysis in a traveller visiting Thailand. J Travel Med. 2024 Jan 28;31(1):taad161.

2023

Matsee W, Charoensakulchai S, Wirawan IMA, Imad HA. The silent, rapidly unfolding threat of mpox spread via international travel to Southeast Asia: Are we ready? Travel Med Infect Dis. 2023 Jul-Aug;54:102597.

Dey RK, Imad HA, Aung PL, Faisham M, Moosa M, Hasna M, Afaa A, Ngamprasertchai T, Matsee W, Nguitragool W, Nakayama EE, Shioda T. Concurrent Infection with SARS-CoV-2 and Orientia tsutsugamushi during the COVID-19 Pandemic in the Maldives. Trop Med Infect Dis. 2023 Jan 25;8(2):82.

Shafeeq A, Imad HA, Azhad A, Shareef M, Najmy MS, Siraj MM, Sunil M, Rafeeu R, Moosa AS, Shaheed A, Ngamprasertchai T, Matsee W, Aung PL, Nguitragool W, Shioda T. A Fatal Case of Native Valve Endocarditis with Multiple Embolic Phenomena and Invasive Methicillin-Resistant Staphylococcus aureus Bacteremia: A Case Report from the Maldives. Trop Med Infect Dis. 2023 Jan 10;8(1):53.

2022

Imad HA, Lakanavisid P, Pisutsan P, Trerattanavong K, Ngamprasertchai T, Matsee W, Piyaphanee W, Leaungwutiwong P, Nguitragool W, Nakayama EE, Shioda T. A Case Report of Secondary Syphilis Co-Infected with Measles: A Diagnostic Dilemma with Fever and Rash. Trop Med Infect Dis. 2022 May 9;7(5):70.

Bantuchai S, Imad H, Nguitragool W. Plasmodium vivax gametocytes and transmission. Parasitol Int. 2022 Apr;87:102497.

Phadungsombat J, Imad HA, Nakayama EE, Leaungwutiwong P, Ramasoota P, Nguitragool W, Matsee W, Piyaphanee W, Shioda T. Spread of a Novel Indian Ocean Lineage Carrying E1-K211E/E2-V264A of Chikungunya Virus East/Central/South African Genotype across the Indian Subcontinent, Southeast Asia, and Eastern Africa. Microorganisms. 2022 Feb 3;10(2):354.

2021

Imad HA, Ali AA, Nahuza M, Gurung R, Ubaid A, Maeesha A, Didi SA, Dey RK, Hilmy AI, Hareera A, Afzal I, Matsee W, Nguitragool W, Nakayama EE, Shioda T. Acalculous Cholecystitis in a Young Adult with Scrub Typhus: A Case Report and Epidemiology of Scrub Typhus in the Maldives. Trop Med Infect Dis. 2021 Dec 8;6(4):208.

Poltep K, Nakayama EE, Sasaki T, Kurosu T, Takashima Y, Phadungsombat J, Kosoltanapiwat N, Hanboonkunupakarn B, Suwanpakdee S, Imad HA, Srimark N, Kitamura C, Yamanaka A, Okubo A, Shioda T, Leaungwutiwong P. Development of a Dengue Virus Serotype-Specific Non-Structural Protein 1 Capture Immunochromatography Method. Sensors (Basel). 2021 Nov 24;21(23):7809.

Miqdhaadh A, Imad HA, Fazeena A, Ngamprasertchai T, Nguitragool W, Nakayama EE, Shioda T. Multisystem Inflammatory Syndrome Associated with SARS-CoV-2 Infection in an Adult: A Case Report from the Maldives. Trop Med Infect Dis. 2021 Oct 19;6(4):187.

Imad HA, Phadungsombat J, Nakayama EE, Chatapat L, Pisutsan P, Matsee W, Piyaphanee W, Nguitragool W, Shioda T. A Cluster of Dengue Cases in Travelers: A Clinical Series from Thailand. Trop Med Infect Dis. 2021 Aug 14;6(3):152.

Imad HA, Phadungsombat J, Nakayama EE, Suzuki K, Ibrahim AM, Afaa A, Azeema A, Nazfa A, Yazfa A, Ahmed A, Saeed A, Waheed A, Shareef F, Islam MM, Anees SM, Saleem S, Aroosha A, Afzal I, Leaungwutiwong P, Piyaphanee W, Phumratanaprapin W, Shioda T. Clinical Features of Acute Chikungunya Virus Infection in Children and Adults during an Outbreak in the Maldives. Am J Trop Med Hyg. 2021 Aug 2;105(4):946-954.

Yamanaka A, Imad HA, Phumratanaprapin W, Phadungsombat J, Konishi E, Shioda T. Antibody-dependent enhancement representing in vitro infective progeny virus titer correlates with the viremia level in dengue patients. Sci Rep. 2021 Jun 11;11(1):12354.

Imad HA, Matsee W, Kludkleeb S, Asawapaithulsert P, Phadungsombat J, Nakayama EE, Suzuki K, Leaungwutiwong P, Piyaphanee W, Phumratanaprapin W, Shioda T. Post-Chikungunya Virus Infection Musculoskeletal Disorders: Syndromic Sequelae after an Outbreak. Trop Med Infect Dis. 2021 Apr 15;6(2):52.

Hilmy AI, Dey RK, Imad HA, Yoosuf AA, Nazeem A, Latheef AA. Coronavirus disease 2019 and dengue: two case reports. J Med Case Rep. 2021 Mar 26;15(1):171.

Matsee W, Lakanavisid P, Imad HA, Piyaphanee W. Souvenir from a tropical beach?: A diagnostic challenge. Travel Med Infect Dis. 2021 Mar-Apr;40:101990.

Dey RK, Hilmy AI, Imad HA, Yoosuf AA, Latheef AA. COVID-19 and emergencies in patients with diabetes: two case reports. J Med Case Rep. 2021 Feb 2;15(1):57.

Imad HA, Phadungsombat J, Nakayama EE, Kludkleeb S, Matsee W, Ponam T, Suzuki K, Leaungwutiwong P, Piyaphanee W, Phumratanaprapin W, Shioda T. Chikungunya Manifestations and Viremia in Patients WhoPresented to the Fever Clinic at Bangkok Hospital for Tropical Diseases during the 2019 Outbreak in Thailand. Trop Med Infect Dis. 2021 Jan 21;6(1):12.

Pisani L, Algera AG, Serpa Neto A, Ahsan A, Beane A, Chittawatanarat K, Faiz A, Haniffa R, Hashemian SM, Hashmi M, Imad HA, Indraratna K, Iyer S, Kayastha G, Krishna B, Ling TL, Moosa H, Nadjm B, Pattnaik R, Sampath S, Thwaites L, Tun NN, Mohd Yunos N, Grasso S, Paulus F, Gama de Abreu M, Pelosi P, Day N, White NJ, Dondorp AM, Schultz MJ; PRoVENT-iMiC Investigators, MORU, and the PROVE Network. Epidemiological Characteristics, Ventilator Management, and Clinical Outcome in Patients Receiving Invasive Ventilation in Intensive Care Units from 10 Asian Middle-Income Countries (PRoVENT-iMiC): An International, Multicenter, Prospective Study. Am J Trop Med Hyg. 2021 Jan 11;104(3):1022-1033.

2020

Phadungsombat J, Imad H, Rahman M, Nakayama EE, Kludkleeb S, Ponam T, Rahim R, Hasan A, Poltep K, Yamanaka A, Matsee W, Piyaphanee W, Phumratanaprapin W, Shioda T. A Novel Sub-Lineage of Chikungunya Virus East/Central/South African Genotype Indian Ocean Lineage Caused Sequential Outbreaks in Bangladesh and Thailand. Viruses. 2020 Nov 17;12(11):1319.

Imad HA, Phumratanaprapin W, Phonrat B, Chotivanich K, Charunwatthana P, Muangnoicharoen S, Khusmith S, Tantawichien T, Phadungsombat J, Nakayama E, Konishi E, Shioda T. Cytokine Expression in Dengue Fever and Dengue Hemorrhagic Fever Patients with Bleeding and Severe Hepatitis. Am J Trop Med Hyg. 2020 May;102(5):943-950.

2018

Pisani L, Algera AG, Serpa Neto A, Ahsan A, Beane A, Chittawatanarat K, Faiz A, Haniffa R, Hashemian R, Hashmi M, Imad HA, Indraratna K, Iyer S, Kayastha G, Krishna B, Moosa H, Nadjm B, Pattnaik R, Sampath S, Thwaites L, Tun NN, Yunos NM, Grasso S, Paulus F, de Abreu MG, Pelosi P, Dondorp AM, Schultz MJ; PRoVENT–iMIC investigators, MORU and the PROVE network. PRactice of VENTilation in Middle-Income Countries (PRoVENT-iMIC): rationale and protocol for a prospective international multicentre observational study in intensive care units in Asia. BMJ Open. 2018 Apr 28;8(4):e020841.

Imad HA, Atsawawaranunt K, Sharma C, Poonam T, Piyaphanee W. Fever, rash, and red eyes in Thailand: A diagnostic challenge. Travel Med Infect Dis. 2018 Jul-Aug;24:15.

2017

Imad HA, Tanyaratsrisakul S, Piyaphanee W, Wattanagoon Y. Skin lesion from Maldives: Classic but forgotten. Travel Med Infect Dis. 2017 May-Jun;17:74-75.