São Paulo has expanded its immunization efforts to more than 400 sites, offering vaccines against influenza, measles, and yellow fever. To mark National Immunization Day, health authorities are deploying “extramuros” (outside the walls) actions in high-traffic areas, including shopping malls, museums, and metro stations, to increase public accessibility.
- Target Vaccines: Influenza, measles, and yellow fever.
- Access Points: Over 400 locations across the city.
- Key Transit Hubs: Metro lines 4-Yellow, 5-Lilac, 8-Diamond, and 9-Emerald.
Where can residents get vaccinated?
The city is moving vaccination services beyond traditional health clinics to reach more people in their daily environments. According to public health authorities, the current campaign utilizes shopping malls and museums as makeshift vaccination points.

Transit commuters also have expanded access this week. Vaccination stations are being established at stations along the 4-Yellow, 5-Lilac, 8-Diamond, and 9-Emerald metro lines.
How flu vaccinations impact COVID-19 diagnosis
Beyond preventing seasonal illness, health officials are linking the influenza drive to broader diagnostic accuracy. A health secretary stated that increasing the rate of flu vaccination will help facilitate the diagnosis of coronavirus.