They may be spreading something but a alleged virus they are not. Germ "theory" is exactly that, theoretical not fact.
My mother gets the flu shot every year and every year she suffers flu like symptoms.

After a year of reading alternative medicine articles and also visiting an ex doctor that has turned to practicing natural medicine due to her dislike of big pharma pill pushing, I tend to agree with them that what we term the flu is vitamin D deficiency and a body detox from toxins.