I am going to Brazil shortly. I might add you may as well get Trimtrix A and B, they come in the same shot. As Claire said above 'Yellow Fever' is essential.
I also received Tetanus, Polio and Typhoid vaccines. See a reputable travel medicine clinic and they will provide a lot of helpful advice. Remember you do not need every shot under the sun, just the ones that pertain to your travel itinerary.

dear friend,
can you tell if i can visit Guatemala,argentina,venezula,uruguay,bolivia?Or can I get troulism visa at destination are port? My pass port is from China.

The CDC has the most current and correct information for travel vaccinations

http://wwwnc.cdc.gov/travel/content/vaccinations.aspx

do I need innoculations to visit mexico,guatemala,nicaragua,costa rica and panama?

Just thought your readers might like to know that when I applied for a yellow fever vaccination prior to a visit to Argentina including Iguazu Falls, my travel clinic warned me that because I am over 60, the chances of getting severe side effects were greater than for someone younger, or someone who was having the vaccination for a second time. These side effects could range from fever to swelling of the brain and shutdown of the body's organs (ie yellow fever itself) - so I decided against the vaccination. I will take my chance amongst the mosquitoes, armed with 100% DEET and a mosquito net! Also why should I pay £50 for the chance of becoming very ill, when a mosquito charges nothing!

I just saw these comments and as a resident of Rio de Janeiro for the last 15 years, I wanted to mention that there is a very effective treatment for dengue. There is also a preventative treatment, it's not a vaccine, but it does seem to work. You can read about it here: http://www.naturalhealthstrategies.com/natural-dengue-treatment.html

On one of these pages you can actually get the formula and have it made at any homeopathic pharmacy. We have been using this formula and have never gotten dengue. It's not proof, but considering the very high number of dengue cases we have here in this area, it's a good indication. So this may just be worth a try.

Hope this helps those traveling to these countries.

we are going on a Princess around South America next year, a few days in Rio, then going onto Buenos Aires, Montevideo, Falkland Is, Ushuaia/Tierra del Fuego, Punta Arenas Chile, Valparaiso, La Serena Coquimbo, Lima Callao, Quito Manta Equador. As we only leave the ship for a maximum of 8 hrs for tours etc at each port, do we need Yellow Fever vaccinations etc? I have been given a lot of conflicting advice esp for Equador.