21. Compared to replicating vaccinia viruses , MVA provides similar or higher levels of recombinant gene expression even in non-permissive cells. 22. Like the conventional one, the Japanese vaccine consists of a live vaccinia virus , a cousin of the smallpox virus. 23. Vaccinia virus , a virus credited for the eradication of smallpox, is being developed as an oncolytic virus, e . g.24. The university team modified the weaker vaccinia virus to help create the protein that makes its cousin, variola, so dangerous. 25. Vaccinia viruses with deletions at either end of the genome behaved as expected, exhibiting only mild or host range defects.26. If a person's immune system is not working properly, the vaccinia virus can multiply explosively and cause a severe infection. 27. In 1928, H . B . Maitland and M . C . Maitland grew vaccinia virus in suspensions of minced hens'kidneys. 28. The other vaccine was a vaccinia virus that was genetically modified to display such flags and spur the immune system's defenses. 29. Vaccinia virus is the active constituent of the vaccine that eradicated smallpox, making it the first human disease to be eradicated.30. Though the vaccine now uses vaccinia virus , the poxviruses are similar enough that the body becomes immune to both cow-and smallpox.
