I. Vaccines train the immune system to recognize and fight specific pathogens. II. Traditional woodworking techniques are still taught in some vocational schools. III. Widespread vaccination has eliminated or greatly reduced several deadly diseases. IV. Herd immunity protects vulnerable individuals who cannot be vaccinated themselves. V. Scientists continue developing vaccines against newly emerging viral threats. (I-V) numaralı cümlelerden hangisi parçanın bütünlüğünü bozmaktadır?
