After statements made by President Jair Bolsonaro, the obligation and importance of vaccination against the coronavirus were discussed again. Healthcare professionals criticized the president's position, stating that the vaccine is not an individual tool, but a collective responsibility. 

According to the vice-president of the Brazilian Society of Immunizations, Isabella Ballalai, it is important that a large part of the target audience is vaccinated. This is because a broad coverage would generate collective immunity, which in some cases prevents the disease from spreading further. 

Isabella argues that the population has quality information about vaccines to generate trust, since questioning and false information can alienate people.

The researcher and virologist at the Vaccine Technology Center at UFMG (Universidade Federal de Minas Gerais), Flávio Guimarães, states that it is possible to eradicate a disease through vaccination, as is happening with polio, which is no longer a prevalent disease in the world. According to the researcher, it is the unprotected people who guarantee the virus circulation.

The National Immunization Program, created based on law No. 6,259 of 1975, requires the Ministry of Health to define mandatory vaccines (such as BCG and triple viral). During the coronavirus pandemic, law No. 13,979 of February 2020, signed by Bolsonaro, says that it is up to the Ministry of Health to determine vaccination as mandatory.