The phrase "a sample of the virus" is correct and usable in written English.
It can be used in scientific or medical contexts when referring to a specimen taken for analysis or study.
Example: "The researchers collected a sample of the virus to conduct further tests and understand its properties."
Alternatives: "a specimen of the virus" or "a viral sample".
No one kept a sample of the virus in 1918, because the flu virus wasn't isolated until fifteen years later.
Within hours of the attack, researchers at Symantec, a Silicon Valley security company, began analyzing a sample of the virus.
Nevertheless, some concern reflected the fact that a sample of the virus had been sent to Iraq a decade ago for diagnostic purposes before the extent of Iraq's biological warfare program was detected.
Security researchers at Symantec, the computer security firm, said that hours after the attack, they received a sample of the virus they believe was responsible.
By Malcolm Gladwell The New Yorker, September 29 , 1997P. 52 A REPORTER AT LARGE about the 1918 Spanish flu epidemic, which killed between twenty and forty million people, and an upcoming attempt to find a sample of the virus inside the Arctic Circle..
A REPORTER AT LARGE about the 1918 Spanish flu epidemic, which killed between twenty and forty million people, and an upcoming attempt to find a sample of the virus inside the Arctic Circle.
The scientists then take a sample of the viruses and infect another animal.
For each infection experiment, a sample of the virus-blood suspension was taken at the end of the mosquitoes feeding and stored at - 80 °C for titration as previously described [ 20].
For each competition experiment, a total of 106 cells were infected with v13 and a sample of the cultured virus of interest (0.5 ng CA-p24 each).
Ada learns that the golden locket contains a sample of the G-virus, and later – taken over by her emotions – returns to Leon, tending to his bullet wound.
Lost in the headlines about the patient's story and ramifications was the role of biotech company ViroLogic, which screened a sample of the patient's HIV virus to determine which classes of antiretroviral drugs his virus was resistant to.
