Alien Viruses : A Sinister Plot by Extraterrestrials ?

This video looks at the many leaked documents that describe research into alien biology and virology. Robert Wood cited specific cases, including the Roswell crash, where alleged human interaction with either UFOs or their ET passengers appears to have directly resulted in illness and death. He argued that this contamination seems to be inadvertent rather than a sinister plot by aliens. However, not only is it possible for ETs to orchestrate a pandemic on Earth, but it would be an ideal tactic to eradicate humans in a simple and clandestine way.
Although the aliens may not be purposely infecting the human race with deadly viruses, Wood's research suggests that the US government has a longstanding program aimed at weaponizing ET germs. To that end, he quoted from a leaked 1951 report by the US government which boasted that "the samples extracted in bodies found in New Mexico have yielded new strains of retrovirus not usually understood, but give promise of the ultimate BW [biowarfare] weapon." Beyond the leaked documents which mention alien viruses, Redfern noted that there are also files, which have officially been released via the FOIA, that also cover a connection between UFOs and diseases.