Background:

The 21st century has been characterized from the beginning by a health problem that has affected the world and Cuba, ranging from an increase in microbial resistance to the appearance of new infectious diseases, such as COVID-19.

Objective:

To describe the transmission of COVID-19 in the Abreus municipality, Cienfuegos province, between weeks 29 and 41 of the year 2021.

Methods:

An observational, descriptive, retrospective cross-sectional study was carried out from week 29-41. The universe consisted of 3,421 patients diagnosed with COVID-19, confirmed by a real-time polymerase chain reaction (RT-PCR) diagnostic test.

Results:

A high magnitude of transmission was observed with 3,421 cases, 122 on average in week 33. Trend of increased case reporting and transmission speed from statistical week 29 to 35 (385 to 3,421 cases). The maximum peak was observed at statistical week 33, with a decrease from that week; In addition, there was a dispersion in all the popular councils, with a greater concentration in the Abreus (1035) and Horquita (725) popular councils. Viral circulation was above 20% in all weeks and the highest occurred in statistical week 37.

Conclusions:

COVID-19 in the Abreus municipality had a great impact in the period studied. Useful information was provided for decision-making during the development of the disease and a basis for the evolutionary understanding of future analogous events.

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