To avoid those few cases, the oral vaccine has been replaced in this country by injected vaccine that contains "killed" virus incapable of causing infection.
(the oral vaccine; has been replaced; L:in this country; by injected vaccine) (injected vaccine; contains; killed" virus incapable of causing infection)
the oral vaccine injected vaccine
has been replaced contains
L:in this country by injected vaccine
killed" virus incapable of causing infection