Virology theme session (2024)

What contributes to a false negative of RT-qPCR?

• Young age

• Collect saliva

• Ventilated patient

• Wrong timing of sample collection

Which of the following virology tests take the longest turnaround time?

• Virus culture

• ELISA

• PCR

• Direct immunofluorescence

Which of the following virology tests take the shortest turnaround time?

• Virus culture

• ELISA

• Rapid antigen test

• Direct immunofluorescence

A construction worker was tested positive for dengue. He has

• Dengue IgM positive

• Zika IgG positive

• Low platelet count

• anti-NS1 positive

A staff nurse was tested positive for influenza. She has

• Influenza rapid antigen positive

• Real-time PCR Ct of 40

• Growth of influenza virus in blood culture

• Haemophilus influenza stained pink in Gram stain

A migrant worker was tested positive for COVID-19. He has

• SARS-COV-2 IgM negative

• Real-time PCR Ct of 25

• Growth of SARS-CoV-2 virus in blood culture

• SARS-CoV-2 rapid antigen negative