scholarly journals Are imported cases the reason for increase in incidence of dengue in Anuradhapura District during the recent years?

2021 ◽  
Vol 15 (1) ◽  
pp. 5
Author(s):  
S. S. Gunathilaka ◽  
S. A. M. Kularatne ◽  
J. Rajapakse ◽  
R. Muthugala
Keyword(s):  
Imported Cases

First Record of Aedes aegypti (L.) Vector of Dengue Virus from Kathmandu, Nepal

2009 ◽  
Vol 24 ◽  
pp. 156 ◽  
Author(s):  
Ishan Gautam ◽  
Megh Nath Dhimal ◽  
Shambhu Raj Shrestha ◽  
Anand Shova Tamrakar
Keyword(s):  
Natural History ◽  
Aedes Aegypti ◽  
First Record ◽  
Transmission Risk ◽  
Haemorrhagic Fever ◽  
Survey Techniques ◽  
Breeding Habitats ◽  
Larval Survey ◽  
Imported Cases ◽  
Primary Vector

Aedes aegypti is the primary vector for the transmission of Dengue Fever (DF)/Dengue Haemorrhagic Fever (DHF). Entomological investigations on breeding habitats and larval prevalence of mosquitoes Aedes aegypti (L.) and Ae. albopictus (Skuse) were conducted from April to June 2009 in Kathmandu district, Nepal. Different water-filled containers were examined for the presence or absence of Aedes larvae. Larval survey techniques were used to obtain the House Index (HI), Container Index (CI) and Breteau Index (BI). The over all HI, CI and BI for Aedes aegypti were 6.25, 4.83, 9.37 and for Aedes albopictus were 6.25, 3.22 and 6.25 respectively. It was also observed that discarded tires lying outdoors were the preferred breeding habitats. No breeding was observed in other containers in April and May during this three months survey. Herewith, we report the first collection and identification of Aedes aegypti in Kathmandu during June, 2009. Indeed, this finding constitutes the first record from the capital of Nepal within the urban agglomeration of Basundhara and Gongabu-Balaju area.Therefore, DF/DHF transmission risk may occur locally if imported cases are introduced.  Key Words: Aedes aegypti; Ae. albopictus;  Kathmandu; First record; Dengue Fever.Journal of Natural History MuseumVol 24, 2009.Page:

scholarly journals Complicated cutaneous leishmaniasis caused by an imported case of Leishmania tropica in Japan: a case report

2021 ◽  
Vol 49 (1) ◽  
Author(s):  
Hiroyuki Kitano ◽  
Chizu Sanjoba ◽  
Yasuyuki Goto ◽  
Kazumasa Iwamoto ◽  
Hiroki Kitagawa ◽  
...  
Keyword(s):  
Cutaneous Leishmaniasis ◽  
Skin Lesions ◽  
Leishmania Tropica ◽  
Case Presentation ◽  
Imported Case ◽  
Imported Cases ◽  
History Of ◽  
Hematoxylin And Eosin ◽  
Polymerase Chain ◽  
Positive Results

Abstract Background Leishmaniasis is not endemic in Japan, and imported cases are rare. However, there are increasing concerns regarding imported cases of cutaneous leishmaniasis from endemic countries to Japan. This report describes a case of imported cutaneous leishmaniasis that was diagnosed and treated in Japan. Case presentation A 53-year-old Pakistani man presented with skin lesions on both malleoli of his right ankle and the dorsum of the left foot. The skin lesions manifested as erythematous nodules surrounding an ulcer in the center of the lesion. The lesions of the malleoli of his right ankle each measured 3 × 3 cm, and the lesion on the top of his left foot measured 5 × 4 cm. He had been living and working in Japan but had a history of a visit to Pakistan for about 2 months in 2018. The skin lesions were biopsied. Giemsa and hematoxylin and eosin staining of biopsy samples showed amastigotes of Leishmania in macrophages, and the presence of Leishmania was confirmed by skin tissue culture. Polymerase chain reaction using biopsy specimens identified Leishmania parasites, and DNA sequence analysis revealed that the species was Leishmania tropica. The patient was treated with intravenous liposomal amphotericin B for 6 days. The erythema disappeared, and the erythematous nodules resolved within 3 weeks. Conclusion This is the first report of imported cutaneous leishmaniasis caused by L. tropica from Pakistan, and it is interesting that all three testing modalities showed positive results in this case.

scholarly journals Subcritical Transmission in the Early Stage of COVID-19 in Korea

2021 ◽  
Vol 18 (3) ◽  
pp. 1265
Author(s):  
Yong Sul Won ◽  
Jong-Hoon Kim ◽  
Chi Young Ahn ◽  
Hyojung Lee
Keyword(s):  
Incubation Period ◽  
Early Stage ◽  
Probability Distributions ◽  
Likelihood Estimation ◽  
Contact Tracing ◽  
Statistical Characterization ◽  
Serial Interval ◽  
Imported Cases ◽  
The Mean ◽  
Reporting Delays

While the coronavirus disease 2019 (COVID-19) outbreak has been ongoing in Korea since January 2020, there were limited transmissions during the early stages of the outbreak. In the present study, we aimed to provide a statistical characterization of COVID-19 transmissions that led to this small outbreak. We collated the individual data of the first 28 confirmed cases reported from 20 January to 10 February 2020. We estimated key epidemiological parameters such as reporting delay (i.e., time from symptom onset to confirmation), incubation period, and serial interval by fitting probability distributions to the data based on the maximum likelihood estimation. We also estimated the basic reproduction number (R0) using the renewal equation, which allows for the transmissibility to differ between imported and locally transmitted cases. There were 16 imported and 12 locally transmitted cases, and secondary transmissions per case were higher for the imported cases than the locally transmitted cases (nine vs. three cases). The mean reporting delays were estimated to be 6.76 days (95% CI: 4.53, 9.28) and 2.57 days (95% CI: 1.57, 4.23) for imported and locally transmitted cases, respectively. The mean incubation period was estimated to be 5.53 days (95% CI: 3.98, 8.09) and was shorter than the mean serial interval of 6.45 days (95% CI: 4.32, 9.65). The R0 was estimated to be 0.40 (95% CI: 0.16, 0.99), accounting for the local and imported cases. The fewer secondary cases and shorter reporting delays for the locally transmitted cases suggest that contact tracing of imported cases was effective at reducing further transmissions, which helped to keep R0 below one and the overall transmissions small.

scholarly journals Prevalence, characteristics and risk factors of imported and local malaria cases in North-Western Province, Zambia: a cross-sectional study

2020 ◽  
Vol 19 (1) ◽  
Author(s):  
Maureen N. Chipoya ◽  
Nzooma M. Shimaponda-Mataa
Keyword(s):  
Risk Factors ◽  
Cross Sectional Study ◽  
Malaria Prevalence ◽  
Imported Malaria ◽  
Full Blood Count ◽  
Sectional Study ◽  
Cross Sectional ◽  
Western Province ◽  
Imported Cases ◽  
North Western

Abstract Background Imported malaria is a major challenge for countries that are in malaria elimination stage such as Zambia. Legitimate cross-border activities add to the risk of transmission, necessitating determination of prevalence, characteristics and risk factors of imported and local malaria. Methods This cross-sectional study was conducted in 103 consented child and adult patients with clinical malaria symptoms, from selected health facilities in north-western Zambia. Patient demographic data and blood samples for malaria microscopy and full blood count were obtained. Chi-square and penalized logistic regression were performed to describe the characteristics and assess the risk factors of imported and local malaria in North-Western Province. Results Overall, malaria prevalence was 78.6% with 93.8% Plasmodium falciparum and 6.2% other species. The local cases were 72 (88.9%) while the imported were 9 (11.1%) out of the 81 positive participants. About 98.6% of the local cases were P. falciparum compared to 55.6% (χ2 = 52.4; p < 0.01) P. falciparum among the imported cases. Among the imported cases, 44% were species other than P. falciparum (χ2 = 48; p < 0.01) while among the local cases only 1.4% were. Gametocytes were present in 44% of the imported malaria cases and only in 2.8% of the local cases (χ2 = 48; p < 0.01). About 48.6% of local participants had severe anaemia compared to 33.3% of participants from the two neighbouring countries who had (χ2 = 4.9; p = 0.03). In the final model, only country of residence related positively to presence of species other than P. falciparum (OR = 39.0, CI [5.9, 445.9]; p < 0.01) and presence of gametocytes (OR = 23.1, CI [4.2, 161.6]; p < 0.01). Conclusion Malaria prevalence in North-Western Province is high, with P. falciparum as the predominant species although importation of Plasmodium ovale and Plasmodium malariae is happening as well. Country of residence of patients is a major risk factor for malaria species and gametocyte presence. The need for enhanced malaria control with specific focus on border controls to detect and treat, for specific diagnosis and treatment according to species obtaining, for further research in the role of species and gametocytaemia in imported malaria, cannot be overemphasized.

Dermatological manifestations in onchocerciasis: A retrospective study of 400 imported cases

2018 ◽  
Vol 36 (10) ◽  
pp. 633-639
Author(s):  
Sabino Puente ◽  
German Ramirez-Olivencia ◽  
Mar Lago ◽  
Mercedes Subirats ◽  
Eugenio Perez-Blazquez ◽  
...  
Keyword(s):  
Retrospective Study ◽  
Imported Cases

scholarly journals African tick bite fever: First imported cases diagnosed in Argentina

2018 ◽  
Vol 73 ◽  
pp. 199
Author(s):  
R. Armitano ◽  
E. Guillemi ◽  
P. Borras ◽  
F. Govedic ◽  
J.L. Lopez ◽  
...  
Keyword(s):  
Tick Bite ◽  
African Tick Bite Fever ◽  
Imported Cases ◽  
Tick Bite Fever

scholarly journals Tungiasis: A Rare Parasitic Infestation in Genitals of a Native Male from Kathmandu

2018 ◽  
Vol 15 (3) ◽  
pp. 295-297
Author(s):  
Shreya Shrivastav ◽  
Ram Chandra Adhikari
Keyword(s):  
United States ◽  
Central America ◽  
United States Of America ◽  
Parasitic Infection ◽  
Surgical Excision ◽  
The United States ◽  
Parasitic Infestation ◽  
Tunga Penetrans ◽  
The World ◽  
Imported Cases

Tungiasis is a common parasitic infection inmany parts of the world, including South and Central America and parts of Africa. It is rare in other places, such as in India and Pakistan and imported cases have been reported in Taiwan, Italy, the United States of America, etc. Our diagnosis was made based on histopathologiocal features of the parasite, which corresponds too ther reports and description of tungiasis.1-3 It was treated by surgical excision alone. The fact that the disease has never been reported in Nepal makes it difficult to diagnose clinically, but should be considered in the future. Histopathology can aid in diagnosingthis rare condition.Keywords: Nepal; tunga penetrans; tungiasis.

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