Possible reinfection by sars-cov-2 (Covid-19), in Teresina (Piauí), A case report

Severe Acute Respiratory Syndrome Corona virus-2 (SARS-CoV-2) is caused by a virus that infects the epithelial cells that express the angiotensin-converting enzyme receptor 2 (ACE2). This virus has a special tropism for lung tissue and the ability to trigger severe clinical conditions, including symptoms such as fever, dry cough, pleural effusion and acute pneumonia, however, there are several scientific reports that show the ability of this virus to infect other organs as human brain. The pandemic caused by Sars-Cov 2, coronavirus-19, has deeply impacted the Brazilian territory, being responsible, until now, for infecting more than 3 million Brazilians and causing more than 122 thousand deaths in Brazil. In view of this, the absence of specific vaccines and medications available, coupled with nonspecific supportive treatments, for the treatment of people infected with SARS-CoV-2, the recent discussion on reports of cases of reinfection by this virus has provoked a series of questions by part of society. Thus, the present study aimed to report the cases of two patients possibly reinfected by Covid-19. It is known that the scientific literature on the subject is still limited, and these reports are strategic to help elucidate the viral behavior of SARS-CoV-2 in humans.