Since this month, a number of cities across Brazil have started large-scale dengue vaccinations, and the city of Rio de Janeiro has declared a public health emergency since February 5 in response to the surge in dengue cases.
Health workers prepare to vaccinate children against dengue fever at a vaccine facility in Botafogo, Rio de Janeiro, Brazil, on February 23. Xinhua News Agency (photo by Claudia Maldini).
A health care worker (right) administers a child against dengue fever at a vaccine facility in Botafogo, Rio de Janeiro, Brazil, Feb. 23. Xinhua News Agency (photo by Claudia Maldini).
A child, right, waits to be vaccinated against dengue fever at a vaccine facility in Botafogo, Rio de Janeiro, Brazil, Feb. 23. Xinhua News Agency (photo by Claudia Maldini).
Health workers vaccinate children against dengue fever at a vaccine facility in Botafogo, Rio de Janeiro, Brazil, on February 23. Xinhua News Agency (photo by Claudia Maldini).
A health care worker (right) administers dengue vaccine to children at a vaccine facility in Botafogo, Rio de Janeiro, Brazil, Feb. 23. Xinhua News Agency (photo by Claudia Maldini).
Health workers prepare to vaccinate children against dengue fever at a vaccine facility in Botafogo, Rio de Janeiro, Brazil, on February 23. Xinhua News Agency (photo by Claudia Maldini).