"Lethal dose of influenza."

..."all mice who received two doses of BPL-1357 vaccine delivered either intramuscularly or intranasally survived later exposure to lethal doses of each of six different influenza virus strains, including subtypes not included in the vaccine."

Just in case you didn't catch the quiet part. They don't infect lab animals with a virus because they can't. They inject them with cocktails of poison mixed with cultured snot and pretend they have results completely isolated from all the other crap they put in the serum. All vaccines are is a dark-ages cocktail of nonsense that prompts your immune system to generate an illness to clear it out. A lot of vaccines add up to a lot of poison. Illness is an important innate detox response and has a purpose, but we wouldn't need extra illnesses if we weren't constantly being poisoned by our toxic world or if our food had proper nutrients from sustainable farming. These are easy things to fix and the reason they aren't done is because Cabal lackeys want to make the human race suffer. These charlatans have no idea how to create a contagious virus, but they know how to create the circumstances that generate an illness.

Can that illness they create by poisoning people spread? Probably. Women sync periods when they spend too much time together. If someone next to you vomits, you immediately feel the same urge. Our entire existence is fundamentally energetic, and as much as they pretend biology and physics are distinct, everything at its base elemental level is physics, and no one has a clue how any of it works.