Тут не те, кто вернулся нужны и спрашивают или нет, а официальная информация о въезде в страну.
Содержится такая в базе Тиматика. Про визу там тоже можно почитать.
По Танзании там можно прочесть следующее:
Tanzania (United Republic of) (TZ)
Vaccination against: YELLOW FEVER if arriving within 6 days
after leaving or transiting countries with infected or endemic
areas.
Exempt from Yellow Fever vaccination:
- Except for those not leaving the airport in the countries
concerned.
Recommended:
- Vaccination against:
- yellow fever (for all other passengers over 1 year);
- typhoid and paratyphoid fevers;
- cholera;
- malaria prophylaxis. Malaria risk - mainly due to P.
falciparum - exists throughout the year in the whole country
below 1800 m. P. falciparum resistant to chloroquine and
resistant to sulfadoxine/pyrimethamine reported (see Terms &
Definitions). Recommended prevention: IV.
http://www.klm.com/travel/ru_en/prepare ... saform.htm