scholarly journals Malaria in Cambodia: A Retrospective Analysis of a Changing Epidemiology 2006–2019

Author(s):  
Srean Chhim ◽  
Patrice Piola ◽  
Tambri Housen ◽  
Vincent Herbreteau ◽  
Bunkea Tol

Background: In Cambodia, malaria persists with changing epidemiology and resistance to antimalarials. This study aimed to describe how malaria has evolved spatially from 2006 to 2019 in Cambodia. Methods: We undertook a secondary analysis of existing malaria data from all government healthcare facilities in Cambodia. The epidemiology of malaria was described by sex, age, seasonality, and species. Spatial clusters at the district level were identified with a Poisson model. Results: Overall, incidence decreased from 7.4 cases/1000 population in 2006 to 1.9 in 2019. The decrease has been drastic for females, from 6.7 to 0.6/1000. Adults aged 15–49 years had the highest malaria incidence among all age groups. The proportion of Plasmodium (P.) falciparum + Mixed among confirmed cases declined from 87.9% (n = 67,489) in 2006 to 16.6% (n = 5290) in 2019. Clusters of P. falciparum + Mixed and P. vivax + Mixed were detected in forested provinces along all national borders. Conclusions: There has been a noted decrease in P. falciparum cases in 2019, suggesting that an intensification plan should be maintained. A decline in P. vivax cases was also noted, although less pronounced. Interventions aimed at preventing new infections of P. vivax and relapses should be prioritized. All detected malaria cases should be captured by the national surveillance system to avoid misleading trends.

2015 ◽  
Vol 20 (46) ◽  
Author(s):  
Jan Walter ◽  
Sebastian Haller ◽  
Hans-Peter Blank ◽  
Tim Eckmanns ◽  
Muna Abu Sin ◽  
...  

Voluntary surveillance systems in Germany suggest a recent decline in the incidence of infections (subsequent to at least 2010) with meticillin-resistant Staphylococcus aureus (MRSA) from various types of specimens and settings. We asked whether this decline is reflected by data from the mandatory national surveillance system for invasive MRSA infections. Our analysis is based on the population in Germany in 2010 to 2014. Cases were identified from passive reporting by microbiological laboratories of the diagnosis of MRSA from blood culture or cerebrospinal fluid. Respective clinical data were subsequently added to the notification. We calculated risk ratios (RR) between consecutive years, stratifying cases by sex, age and federal state of residence. The national incidence increased from 4.6 episodes per 100,000 persons in 2010 to 5.6 in 2012 (2011 vs 2010: RR: 1.13, 95% confidence interval (CI): 1.08–1.18; 2012 vs 2011: RR: 1.08, 95% CI: 1.04–1.13). It stagnated at 5.4 per 100,000 in 2013 (RR: 0.97, 95% CI: 0.93–1.01) before declining to 4.8 in 2014 (RR: 0.88, 95% CI: 0.84–0.91). This trend was observed in most, but not all federal states and strata of sex and age groups. Only 204 of 20,679 (1%) episodes of infection were notified as belonging to an outbreak. Our analysis corroborates previous findings that the incidence of invasive MRSA infections in Germany may be declining.


2021 ◽  
pp. 105394
Author(s):  
Ralciane P. Menezes ◽  
Sávia G.O. Melo ◽  
Murilo B. Oliveira ◽  
Felipe F. Silva ◽  
Priscila G.V. Alves ◽  
...  

2013 ◽  
Vol 58 (4) ◽  
Author(s):  
Rusłan Sałamatin ◽  
Tamara Pavlikovska ◽  
Olga Sagach ◽  
Svitlana Nikolayenko ◽  
Vadim Kornyushin ◽  
...  

AbstractThe filarial nematode Dirofilaria repens is currently considered to be one of the most extensively spreading human and animal parasites in Europe. In Ukraine, reporting cases of dirofilariasis has been mandatory since 1975, and the disease was included in the national surveillance system for notifiable diseases. Up until December 31st 2012, a total of 1533 cases have been registered, with 1465 cases occurring within the previous 16 years. Most of the cases of dirofilariasis were registered in 6 regions: Kyiv, and the Donetsk, Zaporizhzhya, Dnipropetrovsk, Kherson and Chernihiv oblasts. In the years 1997–2002 the highest incidence rate was noted in the Kherson oblast in the south of the country (9.79 per 100 000 people), and the lowest in western Ukraine (0.07–1.68 per 100 000 people). D. repens infections were registered in all oblasts. Parasitic lesions were most often located in the head, the subconjunctival tissue and around the eyes. D. repens lesions were also found in the limbs, torso, male sexual organs, and female mammary glands. Dirofilariasis was diagnosed in persons aged from 11 months to 90 years old, most often among people between 21–40 years of age. Most patients had only one parasitic skin lesion; the majority of isolated nematodes were female. The results of our analysis point to a constant increase in D. repens dirofilariasis incidence in humans in Ukraine. Despite educational efforts, infections have become more frequent and the territory in which the disease occurs has enlarged to encompass the whole of Ukraine. Nevertheless, the Ukrainian sanitary-epidemiological services managed to achieve some measure of success, e.g. by creating a registration system for D. repens infections and establishing proper diagnostics for the disease.


2018 ◽  
Vol 5 (suppl_1) ◽  
pp. S629-S629
Author(s):  
Niccolo Buetti ◽  
Andrew Atkinson ◽  
Nicolas Troillet ◽  
Marie-Christine Eisenring ◽  
Marcel Zwahlen ◽  
...  

2018 ◽  
Vol 93 (6) ◽  
Author(s):  
Marilyn J. Manco‐Johnson ◽  
Vanessa R. Byams ◽  
Michael Recht ◽  
Becky Dudley ◽  
Brandi Dupervil ◽  
...  

2020 ◽  
Vol 189 (4) ◽  
pp. 1507-1514
Author(s):  
Melissa Brady ◽  
Adam Shanley ◽  
Caroline Hurley ◽  
Kate O’Donnell ◽  
Maitiu O’Tuathail ◽  
...  

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