# Declines in Human Rhinovirus, Coronavirus, Parainfluenza, and Adenovirus Infections During the COVID‐19 Pandemic: Evidence From Household‐Based Cohort Studies in Lima, Peru

## TL;DR

During the COVID-19 pandemic in Lima, Peru, common respiratory viruses like rhinovirus and coronavirus were detected less frequently in households compared to the pre-pandemic period.

## Contribution

This study provides evidence of reduced detection rates of common respiratory viruses during the pandemic compared to pre-pandemic times.

## Key findings

- Human rhinovirus detections were significantly lower during the pandemic.
- Endemic coronavirus and parainfluenza virus detections also declined during the pandemic period.
- The study used household-based cohorts for comparison across similar timeframes.

## Abstract

In a household cohort enrolled during the COVID‐19 pandemic in Lima, Peru, detections of human rhinovirus, endemic coronaviruses, and parainfluenza viruses were significantly lower compared to these viral detections in a similar household cohort followed during the same seven epidemiological weeks in a period immediately preceding the COVID‐19 pandemic.