Journals / Mikrobiyoloji Bülteni / 2020 / Cilt: 54 - Sayı: 2

Tularemia Outbreak and After; Effect of Seasonal Changes

Tularemi Salgını ve Sonrası; Mevsimsel Değişikliklerin Etkisi

Pages
203–210
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

It was found that tularemia cases are more frequently seen in the spring and winter.

📌 3 Key Takeaways

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Objective & Hypothesis:Tularemia is a zoonotic infectious disease caused by Francisella tularensis.
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Key Findings & Data:In Yozgat, a total of 525 cases were identified between 2010 and 2016.
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Conclusion & Impact:It was found that tularemia cases are more frequently seen in the spring and winter.
🔬Design:Research Article
📍Scope:2010 Verileri
⚙️Variables:Domain Parameters

Abstract

Tularemia is a zoonotic infectious disease caused by Francisella tularensis. In Yozgat, a total of 525 cases were identified between 2010 and 2016. A serious epidemic occurred with a total of 442 cases in 2010 and 2011 and the number of cases decreased in the later years. In our study, we investigated the association of seasonal factors (temperature, humidity, amount of precipitation, wind speed) with the tularemia epidemic which occurred in 2010 and 2011 and with the decrease in the number of cases in the later years. This study included tularemia cases seen in Yozgat and its districts between 2010 and 2016. Tularemia was defined as a microagglutination test (MAT) result of ≥ 1/160 or a 4-fold increase in MAT titer between two tests at least two weeks apart, in the presence of consistent clinical findings. Seasonal factors were recorded. The conformity of data to normal distribution was analyzed using the ShapiroWilk test. The Mann-Whitney U test was used with the results of Monte Carlo simulations to compare differences between two independent groups in terms of quantitative data. It was found that tularemia cases are more frequently seen in the spring and winter. Meteorological data showed that wind force was statistically significantly higher in the epidemic years than in the other years (p 0.05). Our study found that wind velocity was significantly higher in the epidemic years than in the other years (p< 0.05) and this increase in wind velocity may have caused an increase in tick population and distribution. We believe that, rather than causing direct transmission of tularemia to humans, the increased tick population plays a key role in the maintenance of the life cycle of tularemia by causing transmission to rodents and domestic animals.

Özet

Tularemi, Francisella tularensis’in neden olduğu zoonotik bir enfeksiyon hastalığıdır. Yozgat ilinde ilkolgu 2009 yılında bildirilmiş olup, 2010 ve 2016 yılları arasında 525 olgu görülmüştür. Toplam 442 olguile 2010 ve 2011 yıllarında salgın yaşanmıştır ve sonraki yıllarda olgu sayısı azalmıştır. Bu çalışmada, Yozgat ilinde 2010-2011 yıllarında görülen tularemi salgınının ve takip eden yıllarda olgu sayılarının azalışınınmevsimsel faktörlerle (sıcaklık, nem, yağış miktarı, rüzgar hızı) olan ilişkisinin incelenmesi amaçlanmıştır.Bu çalışmaya 2010-2016 yılları arasında görülen tularemi olguları dahil edilmiştir. Uyumlu klinik bulgularvarlığında, mikroaglütinasyon testi (MAT) ≥ 1/160 veya en az iki hafta ara ile bakılan MAT titresinde dörtkat artış olması, tularemi olarak tanımlanmıştır. Yozgat ili Meteoroloji Müdürlüğünden elde edilen aylıken yüksek, en düşük ve ortalama sıcaklık ile aylık ortalama rüzgar hızı, ortalama nem oranı ve yağış miktarı bilgileri kaydedilmiştir. Verilerin normal dağılıma uygunluğu Shapiro-Wilk testi ile değerlendirilmiştir.Bağımsız iki grubun nicel verilere göre birbiriyle karşılaştırılmasında Mann-Whitney U testi Monte Carlosonuçlarıyla birlikte kullanılmıştır. Nicel değişkenler tablolarda ortalama ± “Interquartile Range (IQR)”kategorik değişkenler ise n (%) olarak gösterilmiştir. Değişkenler %95 güven düzeyinde incelenmiş olupp 0.05). Çalışmamızda, tularemi salgınının görüldüğü yıllardarüzgar hızının diğer yıllara oranla anlamlı derecede yüksek olduğu saptanmıştır (p 0.05).

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Cite This Article

KÖSE, H., TEMOÇİN, F., SARI, T. (2020). Tularemia Outbreak and After; Effect of Seasonal Changes. Mikrobiyoloji Bülteni, Cilt: 54 - Sayı: 2, 203–210. https://ajindex.com/articles/341045

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