The study of Ramos et al. [Reference Ramos1] above, describes the coverage of Chagas disease screening in pregnant women from endemic countries living in Alicante. Their results were compared to our study showing results from the city of Valencia, which belongs to the same Spanish region [Reference Barona-Vilar2].

Data from deliveries of Latin American women at the ‘Hospital General de Alicante’ were linked with serological data to ascertain if the serological tests had been performed in the targeted population. In comparison with the Valencia data (95·4% of coverage) the authors showed that a lower percentage of theoretical targeted women in the city of Alicante had a serological test registered in the laboratory database (41%). It must be highlighted that there are some differences between both studies that may explain at least the different coverage.

The period of study was longer in Alicante and included 2 years (2008 and 2012), with evident lower rates that affect the mean overall rate of the studied period. Moreover, the sources used to analyse the data from Alicante may have lead to an underestimation of the coverage rate, due to the fact that the Hospital General is the reference hospital for high-risk pregnancies and receives women from other health departments. It might be that a number of the women delivering there could have been followed in a primary health centre of other health departments, and their serological test analysed in a different microbiology laboratory. Another less probable reason to consider could be that some women knew their status against T. cruzi or had been screened already during a previous pregnancy in Spain. The best source to ascertain the exact status of the women's serological situation in the Valencian Region may well be the obstetrical records and the maternal cards completed by midwives following up pregnant women at the primary healthcare centres.

We agree with Ramos et al. with regard to the importance of sensitizing all the health specialities involved to the relevancy of the screening programme during pregnancy. Scholarly communication supposes an important challenge to warrant higher coverage rates. Midwives, especially those falling within the providence of recruitment, should be offered participation in workshops to be trained, because they represent a key point in the chain.

In conclusion, different Spanish studies have identified that women from the Southern Cone, and especially those from Bolivia, are the most vulnerable to Chagas disease in immigrant mothers [Reference Barona-Vilar2–Reference Flores-Chavez4]. The demonstrated benefits for their newborns make it especially recommendable to implement similar programmes in those Spanish and European regions with immigrant populations arriving from endemic areas.