A patient presents with glomerulonephritis and has a recent history of a sore throat which has since resolved.  The patient’s doctor suspects post-streptococcal glomerulonephritis and wants to order laboratory testing to determine if the patient has had a recent Group A streptococcal infection.  Which of the following are the BEST two tests to detect recent Group A streptococcal infection?

The serum measurement of IgG antibodies to Helicobacter pylori in the adult population, for the purpose of making a decision whether to attempt to eradicate the infection, is of limited value because:

The process of producing cells for chimeric antigen receptor-T cell (CAR-T) therapy involves which one of the following manipulations of the patient’s T cells:

Which of the following tests is classified as an unlabeled precipitation assay:

Which of the following viral infections does NOT have the characteristic of chronic carriage, either latent carriage or clinically latent chronic infection?

Viral encephalitis presenting during the summer may be due to an enterovirus, but year-round, the presentation of viral encephalitis should prompt consideration of which of following viruses as the cause of the encephalitis:

The highest viral loads in HIV-infected individuals occurs during which phase or phases of the infection, leading up to and including the clinical syndrome of AIDS:

A patient presents with signs of secondary syphilis; there is no past history of syphilis.  A rapid plasma reagin (RPR) screen is positive; the RPR is titered, revealing positivity at a dilution of 1:64.    Of the following, the next laboratory assay to perform is the following confirmation test:

As a clinical laboratory test, Ouchterlony double-diffusion has largely been abandoned, but it is still actively used as part of the laboratory diagnostic evaluation involving:

Mi hermano no tiene _____________   respeto.