R
Ranjan Premaratna
Researcher at University of Kelaniya
Publications - 77
Citations - 2754
Ranjan Premaratna is an academic researcher from University of Kelaniya. The author has contributed to research in topics: Scrub typhus & Dengue fever. The author has an hindex of 18, co-authored 71 publications receiving 2396 citations.
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Journal ArticleDOI
The global burden of snakebite: a literature analysis and modelling based on regional estimates of envenoming and deaths.
Anuradhani Kasturiratne,A. Rajitha Wickremasinghe,Nilanthi de Silva,N. Kithsiri Gunawardena,Arunasalam Pathmeswaran,Ranjan Premaratna,Lorenzo Savioli,David G. Lalloo,H. Janaka de Silva +8 more
TL;DR: It is estimated that, globally, at least 421,000 envenomings and 20,000 deaths occur each year due to snakebite, with the highest burden exists in South Asia, Southeast Asia, and sub-Saharan Africa.
Journal ArticleDOI
Evaluation of six commercial point-of-care tests for diagnosis of acute dengue infections: the need for combining NS1 antigen and IgM/IgG antibody detection to achieve acceptable levels of accuracy.
Stuart D. Blacksell,Stuart D. Blacksell,Richard G. Jarman,Mark S. Bailey,Ampai Tanganuchitcharnchai,Kemajittra Jenjaroen,Robert V. Gibbons,Daniel H. Paris,Daniel H. Paris,Ranjan Premaratna,H. Janaka de Silva,David G. Lalloo,Nicholas P. J. Day,Nicholas P. J. Day +13 more
TL;DR: This study provides strong evidence of the value of combining dengue antigen- and antibody-based test results in the rapid diagnostic test (RDT) format for the acute diagnosis of d Dengue.
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Comparison of Seven Commercial Antigen and Antibody Enzyme-Linked Immunosorbent Assays for Detection of Acute Dengue Infection
Stuart D. Blacksell,Stuart D. Blacksell,Richard G. Jarman,Robert V. Gibbons,Ampai Tanganuchitcharnchai,Mammen P. Mammen,Ananda Nisalak,Siripen Kalayanarooj,Mark S. Bailey,Ranjan Premaratna,H. Janaka de Silva,Nicholas P. J. Day,Nicholas P. J. Day,David G. Lalloo +13 more
TL;DR: Combining the NS1 antigen and IgM antibody results from the Standard Diagnostics ELISAs gave the best compromise between sensitivity and specificity (87 and 96%, respectively), as well as providing the best sensitivity for patients presenting at different times after fever onset.
Journal ArticleDOI
Acute hearing loss due to scrub typhus: a forgotten complication of a reemerging disease.
Ranjan Premaratna,T.G.A.N. Chandrasena,A. S. Dassayake,A. D. Loftis,Gregory A. Dasch,H.J. de Silva +5 more
TL;DR: 6 patients with scrub typhus who presented with acute hearing loss, a forgotten complication of this reemerging disease are described, which prompted the diagnosis of typhus fever and led to early institution of treatment.
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Rickettsial infections and their clinical presentations in the Western Province of Sri Lanka: a hospital-based study §
TL;DR: In a region representing the low country wet zone of Sri Lanka, the main rickettsial agent seems to be Orientia tsutsugamushi, which responded well to current treatment.