The document discusses different types of attitudes that can spread like a virus through work groups and negatively impact productivity. These include: being overly aggressive and loud with coworkers; demanding perfection and finding fault; focusing only on one's own work and resisting change; only doing assigned tasks and not collaborating; spreading rumors about problems; not being committed to obligations; and having an overly pessimistic viewpoint and finding issues in everything. Managing one's attitude is important to avoid negatively impacting coworkers and work performance.