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Órgano Oficial de la Sociedad
Latinoamericana de lnfectología Pediátrica.
Órgano de la Asociación Mexicana de
Infectología Pediátrica, A.C.
Órgano difusor de la Sociedad Española
de lnfectología

2020, Number 4

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Rev Latin Infect Pediatr 2020; 33 (4)

Behavior of influenza in the state of Mexico and its climatic correlation: analysis of 2009-2018

Coria LJJ, Ortiz GER, Mancilla LE, Pla ENE, Mirón CX, Coria GA

Language: English
References: 26
Page: 178-190
PDF size: 400.68 Kb.


ABSTRACT

The abrupt changes of the climate and its diversity, as well as the direction of the winds in a certain region, are known to be a favorable factor for the appearance of acute respiratory illnesses like cold, laryngitis, pneumonia and influenza between others, the same that are related more with some seasonal period as the one that predominates over the dry-cold climate and/or climate with few moisture. Therefore, it is important to know if the climatic factors or environmental and geographic influence or were influential in the distribution of cases of influenza in the 125 municipalities of the state of Mexico. We reviewed the annual concentrations of databases in Excel with a positive result for some type of influenza from the pandemic (2009) until the end of the 2018 season (epidemiological week 20). We analyze the circulation of the virus according to the cardinal points, climatic and geographic conditions, municipalities and jurisdictions and its proximity to the CDMX (Mexico City). Our results were: of one total 19,444 suspected cases analyzed, 4,594 positive cases were found, of which the majority (3,561 [77.51%]) focused only in 19 municipalities and the rest (1,033 [21.8%]) were presented in the different towns. The circulation of the virus was mainly in those places located to the north of the city of Mexico, regardless if it is registered as a municipality or jurisdiction. The municipalities with the largest registry of cases of influenza were: Nezahualcoyotl, Ecatepec, and Naucalpan. Conclusions: This behavior in the State of Mexico could be first; The municipalities with the highest number of cases of influenza are within the defined areas with dry steppe and semidry. And in addition to the correlation of the following geographical factors helping for the spread of the virus of influenza, such as the formation of microclimates, latitude, and circulation of winds (predominantly north to south, east to west), topography, solar radiation, environmental pollution, and human activity. That in combination makes atmospheric basins, which favorises the virus to find ideal conditions for its spread.


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