QuestionSBA
QuestionChoice
This is an exotoxin which is secreted by *H pylori* that causes gastric mucosal injury.
10024435
a
Vacuolating toxin A (VacA)
QuestionChoice
This virulence factor is found in *Staphylococcus aureus* and *Clostridium perfringens*. It disrupts cell membranes.
10024439
e
Alpha toxin
QuestionChoice
This is a virulence factor of influenza. It allows influenza to bind to host cell membranes to aid with infectivity.
10024436
b
Neuraminidase
QuestionChoice
This is a virulence factor of *Staphylococcus aureus* and degrades hyaluronic acid between adjacent cells.
10024438
d
Hyaluronidase
QuestionChoice
This is a virulence factor of influenza. It also allows influenza to bind to host cell membranes to aid with infectivity.
10024437
c
Haemagglutinin
Concept
Chapter
2693
4019
H. Pylori
Topic
136
Gastroenterology
17285
A 62-year-old male attends his GP due to severe heartburn and epigastric pain. His symptoms are not relieved by ranitidine. Following a urea breath test, he is diagnosed as having *Helicobacter pylori*.

Which of the following is a virulence factor of *H pylori*?
a