Objective:

To summarize and analyze the evidence of the association between Covid-19 and climatic factors

Materials and methods:

We used the Cochrane rapid review methodology. An academic database and preprints were examined with the searches restricted from January 1 to April 27. Titles and abstracts were reviewed by two researchers and full texts were reviewed by the five authors.

Results:

We identified 354 articles, 26 met the established eligibility criteria. Of these, 20 reported an inverse association. When evaluating their quality, nine were qualified with moderate validity, this is because they adjusted for covariates in the analysis, but they are ecological studies.

Conclusions:

Despite homogeneity of results, climatic factors explained a small percentage of Covid-19 incidence variability. Future studies need to include individual risk factors and longer period of data to capture trend or seasonality.

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