Introduction:

The increasing worldwide number of cases of COVID-19 has led to the deterioration of mental health and researches of new treatments; this has resulted in an explosion of keyword searches on Internet.

Objective:

This research has described the use of Google Trends to measure the search queries in internet for terms associated with the COVID-19 pandemic in different regions of Peru as well as its potential to conduct research on health aspects.

Method:

It was measured the search trends in internet for the term "chlorine dioxide" in the period from June 3 to September 3, 2020. Google trends data were used on a fraction of the keyword searches, and the outcomes were analyzed according to the geographic location and defined period.

Results:

It was found a higher tendency of searching related terms in Bolivia, Perú, Ecuador, Argentina, and México. A high positive correlation was found between the level of search in Argentina and the number of COVID-19 cases in this country, unlike Peru, Ecuador and Mexico, where the correlation was very low. Instead, in Bolivia there was a very low negative correlation. Google Trends could also potentially define the appropriate time and location to practice risk communication strategies to affected populations.

Conclusions:

An appropriate risk communication could help to prevent the excessive information intakes, which often causes concern or panic in different populations.

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