O.P. At the moment I'm guessing that the influenza vaccinations are not available in the D.R. as of yet. Today my wife walked to Centro Sanitario. They told her that they are not available and that they have no idea when they will be available. That corroborates the El Diario news report from a few days ago. We have called the Amadita Vaccination Center in Megacentro Mall. They never pick up the phone. It's doubtful that the influenza vaccination would be available there but not in the main governmental agency. Likely a wasted trip there and back for nothing.
Meanwhile, @Pikobell gives another source: escudea.com I checked that website and under Contacto they have a WhatsApp number. I have messaged them and I'll report back. It's looking like I (or we) are just going to have to sit on this for a while and wait. BTW, you can take it with a grain of salt if you are skeptical but the weekly report I receive from an epidemiologist in the U.S. (Ph.D.) who consults with CDC, reports that the vaccine manufacturers missed the mark this year, that there is not a match between the predicted and actual variants and that the effectiveness for prevention of hospitalization is calculated to be 30-50%. Not good if true but better than 0%, one's own immunity aside.
Three years ago, I had the influenza vaccination on my list for the week following, then became sick. It was influenza and I was in bed for one month. Influenza is not AT ALL like the common cold. When I recuperated, I then got the vaccination in case of re-infection.

Centros donde encontrarás la vacuna contra la influenza de forma gratuita
Estos centros de vacunación estarán disponibles desde las 9:00 de la mañana hasta las 4:00 de la tarde
