Disease outbreak has occurred in northern Argentina , Brazil and Paraguay . The outbreak has killed at least 21 people . Health officials recommend that people planning to go to affected areas get vaccine . Title: Why do we have a " right of free speech "?
Disease outbreak has occurred in northern Argentina , Brazil and Paraguay . The outbreak has killed at least 21 people . Health officials recommend that people planning to go to affected areas get vaccine . Concern began in Argentina last month after 17 monkeys died of yellow fever .