02172nas a2200265 4500000000100000008004100001260001600042653001700058653002400075653002100099653001400120100001600134700001500150700001700165700001400182700001400196700002500210700002200235700001100257245011000268300001100378490000800389520149500397022001401892 2021 d bElsevier BV10aParasitology10aInfectious Diseases10aGeneral Medicine10aDisasters1 aRostamian M1 aRezaeian S1 aHamidouche M1 aBahrami F1 aGhadiri K1 aChegeneh Lorestani R1 aNemati Zargaran F1 aAkya A00aThe effects of natural disasters on leishmaniases frequency: A global systematic review and meta-analysis a1058550 v2173 aObjectives
Natural disasters (NDs) may increase the outbreaks and transmissions of vector-borne diseases such as cutaneous leishmaniasis (CL) and visceral leishmaniasis (VL). However, the relationship between leishmaniases and NDs has not yet been clearly established. Here, we systematically reviewed all reported articles in this field to answer whether NDs increase the frequency of leishmaniases.

Methods
All the related articles published during January 2000 till January 2020 were reviewed. Moreover, all NDs and the associated leishmaniases frequencies reports in 17 leishmaniases endemic countries were searched to find any ND-leishmaniases relationship.

Results
After the initial screening, 39 articles on ND-leishmaniases were selected and systematically reviewed. These articles showed different frequencies of CL in the endemic areas before and after NDs in some regions of Pakistan and Iran and in case of VL in Brazil, Ethiopia, and Sudan. After thorough deliberation, four studies for CL-ND and five studies for VL-ND relationships were selected for meta-analysis. The results showed increases in the leishmaniases incidences after NDs, although not robustly.

Conclusion
The lack of a strong leishmaniases-ND relationship could be attributed to the local compilations of such data in scattered regions of the endemic countries. Therefore, currently a substantial knowledge gap on leishmaniases-ND relationship is apparent. a0001-706X