RIO DE JANEIRO, BRAZIL - In cities of at least 18 states, doses to complement immunization with the Butantan vaccine are scarce, an issue that may have an impact on protection against Covid-19.
By early Monday, May 3rd, the administration of the second dose of the Coronavac, a crucial vaccine in the Brazilian immunization program against Covid-19, was suspended in at least 9 capitals cities and hundreds of other cities in 18 states.
The suspension of vaccination is not exactly new in Brazil, having occurred in several states in the past. However, previously, the appointment of new priority groups . . .