I think it depends largely on the information given by the respondents. if the respondents do not give accurate answers then it could mislead the system and officials. In my opinion it will help reduce future outbreaks but not prevent it entirely.

A symptom-tracker App for COVID-19 can give epidemiological data but will not be able to eliminate COVID-19 considering a cluster having symptoms but living in a small housing unit cannot apply social distancing, quarantine or self isolation properly.

Furthermore, the symptoms may be over-reported or under-reported.

Hi

Please check the following link. I believe it will help you.

https://kdvr.com/news/coronavirus/colorado-covid-19-symptom-tracker-aims-to-prevent-outbreaks/

Regards

Yes, it can be used to reduce it spread and to acquaint researchers with the number of people infected with the virus. But it can't be used to treat people with the virus not forgetting the people from developing countries. Is not every one in undeveloped countries( even some developed countries) that will utilize this app and hence can reduce the importance of the app. Also, people may be bias in their answers or not provide the adequate answer due to ignorance. So in conclusion, it can help can knowledge on some percentage of people infected so as to take necessary measures to reduce the spread but can be treated.

I believe that if the application is used in a serious way, it can support not only epidemiologists, in the monitoring and observation of the epidemic process, but also support professionals who work in Family Health Strategies who need to carry out visits and follow-up cases not severe or not yet aggravated with symptoms.

Here in Brazil, we have some application experiences, in some states and municipalities, which serve to accompany people who have symptoms and in addition the geospatial study of people who have symptoms. Geospatialization supports health policies to be implemented. They receive calls from the call center services that were created or implemented to reduce the number of Users going to the services of the Unified Health System (SUS) and thus prevent the COVID-19 from spreading further.

Undeniable, it will be beneficial.

You can find out the ratios of COVID_19 incidence before and after lockdown.

You can find out privilege in response of COVID_19 among different age groups and geographical regions.

You can find out in which percentage it has increased in crowded areas (supermarkets, concerts, people gathering for different supports) as compared to uncrowded.

The symptom tracker could not only prevent future outbreak but will also help to cut tail the spread of infection