“These results were based on an intent-to-treat analysis which assumes all study dropouts are virologic failures.”

“But officials have been alert for additional cases, in part because virologic cousins of the virus cause encephalitis.”

“A sustained virologic response means the virus was undetectable in the patient's blood 24 weeks after treatment ended.”

“On 4 April specimens obtained by throat swab were sent for virological studies, but they were negative for respiratory viruses.”

“The theraputical failure measured by CD4 response did not agreed with individuals failing by virological parameters.”

“Persistent low-level viraemia and virological failure in HIV-1-infected patients treated with highly active antiretroviral therapy.”