Before revision:  model , where populations differ by their degree of compliance with social distancing policies . Considering the data of the propagation of SARS-CoV-2 in Brazil , where there is a significant stake of the population making their living in the informal economy and thus prone to not follow self-isolation , we assert that if the confinement measures are lifted too soon, namely as much as one week of consecutive declining numbers of new cases, it is very likely the appearance of a second peak  .
After revision:  model , where populations differ by their degree of compliance with social distancing policies . Considering the data of the propagation of SARS-CoV-2 in Brazil , where there is a significant stake of the population making their living in the informal economy and thus prone to not follow self-isolation , we assert that if the confinement measures are lifted too soon, namely as much as one week of consecutive declining numbers of new cases, it is very likely the appearance of a second peak . Our approach should be valid for any country where the number of people involved in the informal economy is a large proportion of the total labor force. In summary, our results point out the crucial relevance of target policies for supporting people in the informal economy to properly comply with preventive measures during the pandemic .