Health
Information for Travelers to Tropical South America
Bolivia, Brazil,
Colombia, Ecuador, French Guiana, Guyana, Paraguay, Peru, Suriname,
Venezuela
NOTE:
Please check the Outbreaks section
for updates on these and other countries.
|
|
|
Food and waterborne diseases are the number one cause of illness in travelers.
Travelers diarrhea can
be caused by viruses, bacteria, or parasites, which are found universally
throughout the region and can contaminate food or water. Infections may
cause diarrhea and vomiting (E. coli, Salmonella, cholera,
and parasites), fever (typhoid
fever and toxoplasmosis), or liver damage (hepatitis). Make sure your
food and drinking water are safe (see
below).
Malaria is a serious, but preventable
infection that can be fatal. Your risk of malaria may be high in these
countries, including some cities. Prevent this deadly disease by seeing
your health care provider for a prescription antimalarial drug and by
protecting yourself against mosquito bites (see
below). Travelers to malaria-risk areas, including infants, children,
and former residents of South America, should take an antimalarial drug.
Chloroquine is the recommended drug for Paraguay. |
|
|
|
Travelers to Bolivia, Brazil, Colombia, Ecuador,
French Guiana, Guyana, Peru, Suriname, and Venezuela should
take one of the following antimalarial drugs: (listed
alphabetically): atovaquone/proguanil, doxycycline, mefloquine,
or primaquine (in special circumstances). |
|
|
For additional information on malaria risk and prevention see Malaria
Information for Travelers to Tropical South America. See
also Preventing Malaria in the Pregnant
Woman (Information for the Public) and Preventing
Malaria in Infants and Children (Information for the Public).
A certificate of
yellow fever vaccination may be required for entry into certain
of these countries. For detailed information, see Comprehensive
Yellow Fever Vaccination Requirements. Also, find the nearest authorized
U.S. yellow fever vaccine center.
If you visit the Andes Mountains, ascend gradually to allow time for
your body to adjust to the high altitude, which can cause insomnia, headaches,
nausea, and altitude sickness. In addition, use sunblock rated at least
15 SPF, because the risk of sunburn is greater at high altitudes.
Dengue, filariasis,
leishmaniasis, onchocerciasis,
and American trypanosomiasis (Chagas
disease) are other diseases carried by insects that also occur in
this region. Protecting yourself against insect bites (see
below) will help to prevent these diseases.
Because motor vehicle crashes are a leading cause of injury
among travelers, walk and drive defensively. Avoid nighttime travel if
possible and always use seat belts.
CDC recommends
the following vaccines (as appropriate for age):
See your doctor at least 46 weeks before your trip to allow time
for immunizations to take effect.
- Hepatitis A or immune globulin
(IG).
- Hepatitis B, if you might
be exposed to blood (for example, health-care workers), have sexual
contact with the local population, stay >6 months in the region,
or be exposed through medical treatment.
- Rabies, if you might be
exposed to wild or domestic animals through your work or recreation.
- Typhoid, particularly
if you are visiting developing countries in this region.
- Yellow fever vaccination, if you
will be traveling outside urban areas.
- As needed, booster doses for
tetanus-diphtheria and measles.
Hepatitis B vaccine is now recommended
for all infants and for children ages 1112 years who did not complete
the series as infants.
To stay healthy,
do...
- Wash hands frequently with soap and water.
- Drink only bottled or boiled water, or carbonated (bubbly) drinks
in cans or bottles. Avoid tap water, fountain drinks, and ice cubes.
If this is not possible, make water safer by BOTH filtering through
an absolute 1-micron or less filter AND adding iodine tablets
to the filtered water. Absolute 1-micron filters are found
in camping/outdoor supply stores.
- Eat only thoroughly cooked food or fruits and vegetables you have
peeled yourself. Remember: boil it, cook it, peel it, or forget it.
- If you will be visiting an area where there is risk for malaria,
take your malaria prevention medication
before, during, and after travel, as directed. (See your doctor for
a prescription.)
- Protect yourself from mosquito bites:
- Pay special attention to mosquito protection between dusk and
dawn. This is when the type of mosquito whose bite transmits malaria
is active.
- Wear long-sleeved shirts, long pants, and hats.
- Use insect repellents that contain DEET
(diethylmethyltoluamide).
- Read and follow the directions and precautions on the product
label.
- Apply insect repellent to exposed skin.
- Do not put repellent on wounds or broken skin.
- Do not breathe in, swallow, or get into the eyes (DEET is toxic
if swallowed). If using a spray product, apply DEET to your face
by spraying your hands and rubbing the product carefully over the
face, avoiding eyes and mouth.
- Unless you are staying in air-conditioned or well-screened housing,
purchase a bed
net impregnated with the insecticide permethrin or deltamethrin.
Or, spray the bed net with one of these insecticides if you are
unable to find a pretreated bed net.
- DEET may be used on adults, children, and infants older than 2
months of age. Protect infants by using a carrier draped with mosquito
netting with an elastic edge for a tight fit.
- Children under 10 years old should not apply insect repellent
themselves. Do not apply to young children’s hands or around
eyes and mouth.
- For details on how to protect yourself from insects and how to
use repellents, see Protection against Mosquitoes
and Other Arthropods.
- If you are visiting friends and relatives in your home country
in areas where malaria occurs, please read the malaria
prevention recommendations for recent immigrants on the CDC
malaria site.
- To prevent fungal and parasitic infections, keep feet clean and dry,
and do not go barefoot.
- Always use condoms to reduce the risk of HIV and other sexually transmitted
diseases.
To avoid getting
sick...
- Dont eat food purchased from street vendors.
- Dont drink beverages with ice.
- Dont eat dairy products unless you know they have been pasteurized.
- Dont share needles with anyone.
- Dont handle animals (especially monkeys, dogs, and cats), to
avoid bites and serious diseases (including
rabies and plague). (For
more information, please see Animal-Associated
Hazards.)
- Dont swim in fresh water. Salt water is usually safer. (For
more information, please see Swimming
and Recreational Water Precautions.)
What you need
to bring with you:
- Long-sleeved shirt, long pants, and a hat to wear while outside whenever
possible, to prevent illnesses carried by insects (e.g., malaria,
dengue, filariasis,
leishmaniasis, and
onchocerciasis).
- Insect repellent containing DEET.
- Bed nets impregnated with permethrin. (Can be purchased in camping
or military supply stores. Overseas, permethrin or another insecticide,
deltamethrin, may be purchased to treat bed nets and clothes.)
- Flying-insect spray or mosquito coils to help clear rooms of mosquitoes.
The product should contain a pyrethroid insecticide; these insecticides
quickly kill flying insects, including mosquitoes.
- Over-the-counter antidiarrheal medicine to take if you have diarrhea.
- Iodine tablets and water filters to purify water if bottled water
is not available. See Dos
above for more detailed information about water filters.
- Sunblock, sunglasses,
hat.
- Prescription medications: make sure you have enough to last during
your trip, as well as a copy of the prescription(s).
After you return
home:
If you have visited a malaria-risk area, continue taking your antimalarial
drug for 4 weeks (chloroquine, doxycycline, or mefloquine) or seven days
(atovaquone/proguanil) after leaving the risk area.
Malaria is always a serious disease and may be a deadly illness.
If you become ill with a fever or flu-like illness either while traveling
in a malaria-risk area or after you return home (for up to 1 year), you
should seek immediate medical attention and should tell
the physician your travel history.
For more information:
Ask your doctor or check the CDC web for more information about how to
protect yourself against diseases that occur in Tropical South America,
including the following:
Diseases carried
by insects |
Diseases carried in
food or water |
Diseases from person-to-person
contact |
|
For more information about these and other diseases, please check the Diseases
page and CDC
Health Topics AZ.
This document is not a complete medical guide for travelers to this region.
Consult with your doctor for specific information related to your needs
and your medical history; recommendations may differ for pregnant women,
young children, and persons who have chronic medical conditions. In addition,
you may also check the following CDC sites:
Be sure to read the information about all the regions you are planning to visit. |