The health department of Espírito Santo in southeastern Brazil confirmed on the 12th local time that the state detected antibodies against the novel coronavirus in serum samples collected in December 2019.
The state of Espírito Sana Health Department said that the state conducted COVID-19-specific antibody tests on serum samples collected from December 1, 2019 to June 30, 2020, from people suspected to be infected with dengue virus or chikungunya virus.
As a result, many blood samples were positive for COVID-19 antibodies. Sex.
Fernandez, Director of Health of Espírito Santo: The test results show that 210 of a total of 7,310 blood samples collected have detected COVID-19-specific IgG antibodies.
Of the 210 blood samples that were positive for COVID-19, 16 were collected before Brazil reported the first case of COVID-19 on February 26 last year, and the earliest was collected on December 18, 2019.
The state health department of Espírito Santa also said that generally speaking, it takes a period of time to test positive for COVID-19-specific antibodies, so that people who were sampled may be “exposed to the novel coronavirus” in late November or early December 2019.
The Brazilian Ministry of Health issued an announcement on the 12th local time, instructing the state of Espírito Santo to conduct an in-depth epidemiological investigation and send blood samples to the Osvaldo Cruz Foundation in Rio de Janeiro for nucleic acid testing.
The top COVID-19 research institution in Brazil will finally confirm the samples. Whether people have been infected with COVID-19.