Tips on Vaccinations like Yellow Fever and Typhoid: The cheapest options mentioned are Costco, GoodRX (request coupon), Walgreens, and County Health Department. You often have to request these vaccines and may have to pay for a travel consult. One helpful tip is to ask your doctor to send in a prescription for the vaccinations — some have had insurance cover the cost that way. Because of taking Doxycycline daily to prevent Malaria, probiotics have been recommended as very helpful for gut health. The Doxy also makes you more susceptible to the sun, so sunscreen is important.