Which parasites causes malaria?

A. Peptostreptococcus is not a common cause of otitis media; it is more often associated with other infections such as abscesses.

B. Streptococcus pneumoniae is one of the most common causes of otitis media in children.

C. Chlamydia trachomatis is associated with other types of infections, such as sexually transmitted infections (STIs) or neonatal conjunctivitis, but not typically otitis media.

D. Treponema pallidum is the bacterium responsible for syphilis and is not a cause of otitis media.

E. Escherichia coli: While Escherichia coli can cause infections, it is not a common pathogen in otitis media in children.

F. Haemophilus influenzae is another common bacterium responsible for otitis media in children, particularly the nontypeable strains.

A. Rectal pain is a common symptom of ulcerative colitis, particularly when the inflammation affects the rectum (proctitis). This discomfort is due to the inflammation of the rectal lining.

B. Hepatorenal syndrome: This is a serious complication of advanced liver disease, not directly associated with ulcerative colitis.

C. Abdominal pain is a hallmark sign of ulcerative colitis, especially during flare-ups. The pain is often crampy and is typically located in the lower abdomen.

D. Vomiting: While GI distress can lead to vomiting, it is not a primary symptom of ulcerative colitis.

E. Protein malnutrition: This can occur in various GI disorders but is not a direct sign of ulcerative colitis.

F. Chronic diarrhea: It is a classic symptom of ulcerative colitis, characterized by frequent, watery stools.