Outbreak of Leptospirosis after Flood, the Philippines, 2009

Amilasan, Al-shere T.; Ujiie, Mugen; Suzuki, Motoi; Salva, Eumelia P.; Belo, Maria Cecilia P.; Koizumi, Nobuo; Yoshimatsu, Kumiko; Schmidt, Wolf‐Peter; Marte, Shane; Dimaano, Efren M.; Villarama, Jose Benito; Ariyoshi, Koya

doi:10.3201/eid1801.101892

Cited by 146 publications

(132 citation statements)

References 11 publications

Supporting

Mentioning

117

Contrasting

Unclassified

Order By: Relevance

“…(Meerburg, Singleton, & Kijlstra, 2009) and shed infectious organisms in urine throughout their lifespan (Li et al, 2013;Vinetz, 2001). Leptospirosis can be fatal and an outbreak in the Philippines after the flood in 2009 was characterized by jaundice, anuria, and hemoptysis (Amilasan et al, 2012). Leptospira was not investigated in the present study, but future environmental surveys should include diagnosing leptospirosis in rodents to understand the health risks.…”

Section: Discussionmentioning

confidence: 74%

Temporal Changes in Environmental Health Risks and Socio-Psychological Status in Areas Affected by the 2011 Tsunami in Ishinomaki, Japan

Makita¹,

INOSHITA²,

Kayano³

et al. 2013

View full text Add to dashboard Cite

show abstract

Section: Discussionmentioning

confidence: 74%

Temporal Changes in Environmental Health Risks and Socio-Psychological Status in Areas Affected by the 2011 Tsunami in Ishinomaki, Japan

Makita¹,

INOSHITA²,

Kayano³

et al. 2013

View full text Add to dashboard Cite

show abstract

“…One study that assessed climatic factors associated with DF incidence in Manila showed that heavy rainfall in the wet season from June to December was significantly associated with increased DF incidence over 1996-2005 [15]. Leptospirosis outbreaks also typically occur during the typhoon season (July-October) [16].…”

Section: Introductionmentioning

confidence: 99%

Effect of temperature, relative humidity and rainfall on dengue fever and leptospirosis infections in Manila, the Philippines

Sumi

Telan²,

Chagan-Yasutan

et al. 2016

Epidemiol. Infect.

View full text Add to dashboard Cite

SUMMARYDengue fever (DF) and leptospirosis are serious public problems in tropical regions, especially in Manila, the Philippines. In attempting to understand the causes of DF and leptospirosis seasonality, meteorological factors have been suspected, but quantitative correlation between seasonality and meteorological factors has not been fully investigated. In this study, we investigated correlation of temporal patterns of reported numbers of laboratory-confirmed cases of both DF and leptospirosis with meteorological conditions (temperature, relative humidity, rainfall) in Manila. We used time-series analysis combined with spectral analysis and the least squares method. A 1-year cycle explained underlying variations of DF, leptospirosis and meteorological data. There was a peak of the 1-year cycle in temperature during May, followed by maxima in rainfall, relative humidity and number of laboratory-confirmed DF and leptospirosis cases. This result suggests that DF and leptospirosis epidemics are correlated not only with rainfall but also relative humidity and temperature in the Philippines. Quantifying the correlation of DF and leptospirosis infections with meteorological conditions may prove useful in predicting DF and leptospirosis epidemics, and health services should plan accordingly.

show abstract

“…The patient 4 swam in a river of Thailand and returned to the United States military base in Japan, and the patient had also been visiting the Japan Ground Self-defense Force camp in the Miyagi Prefecture. The initial chief complaints in the four patients were fever, loss of appetite, malaise, myalgia, arthralgia, headache, and abdominal pain, as previously reported (Amilasan et al 2012). Laboratory findings showed severe AKI and a mild liver injury with hyperbilirubinemia (Table 2).…”

Section: Clinical Courses Of the Four Patientsmentioning

confidence: 59%

“…Recently, outbreak of (Amilasan et al 2012), and unpredictable severe rainfall during the summer was observed in all areas over Japan. For example, in the Yamagata Prefecture, localized torrential downpours during rainy season in July 2013 created landslides, muddy rivers, and floods over large areas.…”

Section: Discussionmentioning

confidence: 99%

“…According to the national surveillance of leptospirosis in the Tohoku region from 2007 to 2011, only one patient was reported in the Akita Prefecture in 2008; therefore, leptospirosis is a very rare infectious disease in northern Japan (National Epidemiological Surveillance of Infectious Diseases (NESID)). Recently, people can suffer from leptospirosis more frequently in disaster such as flood, and leptospirosis is categorized as a disaster-related infectious disease (World Health Organization 2006;Amilasan et al 2012). A cluster of leptospirosis, affecting three electrical specialists who ineffectively protected their legs from the mud, was reported in the Kochi Prefecture in 2011 (Infectious Agents Surveillance Report 2012).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Leptospirosis in the Tohoku Region: Re-emerging Infectious Disease

Saitoh

Koizumi

Seto

et al. 2015

Tohoku J. Exp. Med.

Self Cite

View full text Add to dashboard Cite

Leptospirosis is a zoonotic and disaster-related infectious disease. It is mainly endemic in subtropical or tropical countries and has not been reported since 2009 in the Tohoku region (northern Japan), including the Yamagata and Miyagi Prefectures. However, we experienced four patients with leptospirosis in the Tohoku region from 2012 to 2014; three patients (#1-3) live in the agricultural areas of the Yamagata Prefecture and one patient (#4) was a visitor to the Miyagi Prefecture. Patient 1 (81-year-old female) is a villager, with a rat bite, while Patient 2 (77-year-old male) and Patient 3 (84-year-old female) are farmers and were infected probably during agriculture work. Patient 4 (40-year-old male US citizen) was infected while traveling in Thailand. They had chief complaint of fever, headache, and myalgia and showed manifestations of hyperbilirubinemia (mean, 4.35 mg/dL), thrombocytopenia and acute kidney injury (AKI). All patients were diagnosed by polymerase chain reaction using blood and/or urine samples and a microscopic agglutination test for the anti-Leptospira antibody. All the patients were treated with infused antibiotics, including minocycline. The patients underwent hemodialysis due to severe AKI (mean serum creatinine, 4.44 mg/dL), except for Patient 2 with the normal serum creatinine level (1.12 mg/dL). All the patients recovered and were discharged. The presence of the three patients in the Yamagata Prefecture implies that leptospirosis does re-emerge in the Tohoku region. Therefore, careful survey of the pathogen is necessary for febrile patients with AKI who engage in agriculture or have a recent history of travelling in subtropical or tropical countries.

show abstract

Outbreak of Leptospirosis after Flood, the Philippines, 2009

Cited by 146 publications

References 11 publications

Temporal Changes in Environmental Health Risks and Socio-Psychological Status in Areas Affected by the 2011 Tsunami in Ishinomaki, Japan

Temporal Changes in Environmental Health Risks and Socio-Psychological Status in Areas Affected by the 2011 Tsunami in Ishinomaki, Japan

Effect of temperature, relative humidity and rainfall on dengue fever and leptospirosis infections in Manila, the Philippines

Leptospirosis in the Tohoku Region: Re-emerging Infectious Disease

Contact Info

Product

Resources

About