As the Avengers realize the severity of the situation, they employ various strategies to combat the transformed Hulk. Perhaps they call upon heroes with resistance to infections, such as Spider-Man, whose enhanced metabolism and healing factor could help him withstand the effects of the Hulk’s infectious powers. Additionally, characters like Iron Man or Doctor Strange might develop specialized technology or magical countermeasures to neutralize the infection.

The Avengers could also enlist the aid of their scientific allies, such as Bruce Banner (the original Hulk) or Hank Pym (Ant-Man), to study the infection and develop a cure or a means to reverse the transformation. This could involve isolating samples of the infectious energy or virus and analyzing its properties to identify potential weaknesses.

Ultimately, the Avengers would need to find a way to subdue the transformed Hulk without being infected themselves, all while working on a strategy to reverse the transformation and restore the Hulk to his normal state. It would be a challenging battle that tests their teamwork, resourcefulness, and ability to adapt to new threats.

Remember, this scenario is purely hypothetical and not based on any established Hulk storyline. The Hulk’s infectious powers are a creative concept for the purposes of this discussion.