Goa: fully immunised children fell to 1,584 in April 2018, against 2,588 a year earlier (−39%).

Comparing a week or month with the same week or month a year earlier removes ordinary seasonality: monsoon-season fever, the March reporting rush. What remains is change the calendar does not explain.

For fully immunised children, neither a rise nor a fall is better in itself, so the observatory marks this movement as unusual rather than good or bad.

Compared with the same month of 2017, which removes ordinary seasonality.

Full history of fully immunised children in Goa