Dimitri received a flu vaccination earlier in the year. however, he has just been tested and has a confirmed case of the flu.

why did dimitri most likely get the flu?

vaccinations are not always effective.
vaccinations are not effective if hygiene is poor.
vaccinations give individuals the flu with full symptoms.
vaccinations work only when provided at the onset of the disease.

An 80-year-old woman comes to the urgent care clinic with dyspnoea on exertion. on physical examination, her blood pressure is 100/70, and her pulse is 75. she has no pulsus paradoxus. her jugular veins are distended, and she has distant heart sounds. in addition, she has extra third and fourth heart sounds. her liver is enlarged, and she has pedal oedema. she has occasional premature ventricular contractions on her electrocardiogram. a chest x-ray reveals clear lung fields with a dilated cardiac silhouette. her echocardiogram reveals ventricular walls with a "speckled pattern". which of the following is the most likely diagnosis? - alcoholic cardiomyopathy- amyloidosis- haemochromatosis- tuberculosis- viral myocarditis