| flu virus | 8.36 | It is working on conquering the flu virus. | ||
| stomach virus | 8.10 | I had a bad stomach virus. | ||
| smallpox virus | 4.67 | The smallpox virus cannot grow in mice. | ||
| influenza virus | 3.88 | The vaccine is derived from killed influenza viruses. | ||
| hepatitis virus | 3.69 | Unlike HIV, the hepatitis C virus is sturdy. | ||
| herpes virus | 3.62 | Further tests revealed a herpes virus. | ||
| macro virus | 2.63 | Melissa is a macro virus. | ||
| bird virus | 2.50 | There were no new cases of the bird flu virus on Sunday. | ||
| polio virus | 2.50 | Vaccines eliminated the dreaded polio virus. | ||
| encephalitis virus | 2.11 | Soldiers prepare to shoot pigs to fight encephalitis virus. | ||
| dengue virus | 1.38 | The dengue virus is usually not fatal. | ||
| papilloma virus | 1.18 | This cancer is linked to the human papilloma virus. | ||
| rabies virus | 1.18 | But the bear might have transmitted the rabies virus. | ||
| immunodeficiency virus | 0.99 | But feline immunodeficiency virus is a serious if misunderstood disease. | ||
| e-mail virus | 0.86 | Many e-mail viruses move this way. | ||
| mystery virus | 0.86 | A mystery virus is contaminating blood supplies throughout the world. | ||
| pig virus | 0.79 | The company says no evidence of the pig virus has been found. | ||
| ebola virus | 0.72 | Coleman is to Charlotte what the ebola virus is to the rest of us. | ||
| pox virus | 0.72 | And no studies may be carried out in a laboratory where other pox viruses are kept. | ||
| vaccinia virus | 0.72 | Later, the related vaccinia virus was used for the purpose. |