NEED HELP! If you were born with a genetic disorder that caused you to lack memory B cells, which of the following would be true? (2 points)

Vaccination would prevent further disease.

Vaccination would not prevent further disease.

You would not produce antibodies.

You would overproduce histamine.

Increasing muscular strength improve fitness true or false ? ?

Which method will provide the most emotional support in a new exercise program

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