Between 2013 and 2023, Brazil's Diphtheria, Tetanus, and Pertussis immunization rates have shown significant fluctuations. The highest rate was 97 in 2013, while the lowest was 68.4 in 2021. The trend indicates a general decline, with some temporary improvements, notably in 2015 and 2020. Year-on-year variations have been mostly negative, reflecting challenges in maintaining high immunization rates. The average annual decline over the last five years has been 3.08%. As of 2023, the immunization rate stands at 74.4.
Projected rates for the next five years show a modest decline, with the forecasted CAGR at -0.22% and a forecasted five-year growth rate of -1.08%. The forecast suggests continued challenges in improving immunization rates.
Future trends to watch for include the impact of public health initiatives, vaccine supply stability, and broader socio-economic factors. Ensuring consistent awareness and addressing barriers to vaccine access will be crucial for improving immunization coverage in Brazil.
