Ecuador

Routine vaccines
Make sure you are up-to-date on all routine vaccines before every trip. Some of these vaccines include

Chickenpox (Varicella)
Diphtheria-Tetanus-Pertussis
Flu (influenza)
Measles-Mumps-Rubella (MMR)
Polio
Shingles

COVID-19
All eligible travelers should be up to date with their COVID-19 vaccines.

Hepatitis A
Recommended for unvaccinated travelers one year old or older going to Ecuador.

Infants 6 to 11 months old should also be vaccinated against Hepatitis A. The dose does not count toward the routine 2-dose series.

Travelers allergic to a vaccine component or who are younger than 6 months should receive a single dose of immune globulin, which provides effective protection for up to 2 months depending on dosage given.

Unvaccinated travelers who are over 40 years old, immunocompromised, or have chronic medical conditions planning to depart to a risk area in less than 2 weeks should get the initial dose of vaccine and at the same appointment receive immune globulin.

Hepatitis B
Recommended for unvaccinated travelers younger than 60 years old traveling to Ecuador. Unvaccinated travelers 60 years and older may get vaccinated before traveling to Ecuador.

Malaria
CDC recommends that travelers going to certain areas of Ecuador take prescription medicine to prevent malaria. Depending on the medicine you take, you will need to start taking this medicine multiple days before your trip, as well as during and after your trip. Talk to your doctor about which malaria medication you should take.

Measles
Infants 6 to 11 months old traveling internationally should get 1 dose of measles-mumps-rubella (MMR) vaccine before travel. This dose does not count as part of the routine childhood vaccination series.

Rabies
Rabid dogs are commonly found in Ecuador. If you are bitten or scratched by a dog or other mammal while in Ecuador, there may be limited or no rabies treatment available.

Consider rabies vaccination before your trip if your activities mean you will be around dogs or wildlife.

Travelers more likely to encounter rabid animals include

Campers, adventure travelers, or cave explorers (spelunkers)
Veterinarians, animal handlers, field biologists, or laboratory workers handling animal specimens
Visitors to rural areas
Since children are more likely to be bitten or scratched by a dog or other animals, consider rabies vaccination for children traveling to Ecuador.

Typhoid
Recommended for most travelers, especially those staying with friends or relatives or visiting smaller cities or rural areas.

Yellow Fever
Required for travelers ≥1 year old arriving from Brazil, Democratic Republic of the Congo, or Uganda; this includes >12-hour airport transits or layovers in any of these countries .

Recommended for travelers ≥9 months old going to areas <2,300 m (≈7,550 ft) elevation, east of the Andes Mountains, in the provinces of Morona-Santiago, Napo, Orellana, Pastaza, Sucumbíos, Tungurahua,* and Zamora-Chinchipe.
Generally not recommended for travel limited to areas <2,300 m (≈7,550 ft) elevation, west of the Andes Mountains, in the provinces of Esmeraldas,* Guayas, Los Ríos, Manabí, Santa Elena, Santo Domingo de los Tsáchilas, and designated areas in the provinces of Azuay, Bolívar, Cañar, Carchi, Chimborazo, Cotopaxi, El Oro, Imbabura, Loja, and Pichincha. Not recommended for travel limited to areas >2,300 m (≈7,550 ft) elevation, the cities of Guayaquil or Quito (the capital), or the Galápagos Islands *CDC recommendations differ from those published by WHO.

Source: https://wwwnc.cdc.gov/