Patient's question:
1. My child is almost ten months old.2. At the end of seven months, he contracted Campylobacter jejuni and had diarrhea for nearly a month. Now at nine and a half months, he has a cold, bronchitis, fever, and diarrhea again, and has been tested positive for Campylobacter jejuni.
What kind of bacteria is this? How can I prevent it?
During the diarrhea, he did not dehydrate. First question supplement: Most patients recover on their own, but they can excrete the bacteria for several months, with the longest duration of excretion reaching one year. What do you mean by "excretion"? Also, my child is nine months old, and during treatment, he was given Ke.
Doctor's answer:
Campylobacter jejuni was isolated from the feces of patients with diarrhea by Butzler et al. in 1973. It is now recognized as one of the main causative agents of human diarrhea. The incidence of Campylobacter jejuni enteritis exceeds that of bacterial dysentery in developed countries and is almost the same as that of bacterial dysentery in developing countries.Etiology
The Campylobacter genus can cause diarrhea in humans and animals. Those associated with humans include Campylobacter jejuni, Campylobacter fetus, and Campylobacter coli, with Campylobacter jejuni being the most pathogenic. Campylobacter jejuni has a slender, curved, spiral, or comma-shaped body, is gram-negative, and grows well in a microaerobic environment at 42°C.
Pathogenesis
After entering the intestine, this bacterium rapidly multiplies in an environment with trace amounts of oxygen, primarily affecting the jejunum, ileum, and colon. It invades the intestinal mucosa, causing congestion and hemorrhagic damage. In recent years, some strains have been observed to produce a cholera-like enterotoxin, increasing fluid secretion in the intestinal lumen.
The onset is abrupt, with symptoms including fever, abdominal pain, diarrhea, nausea, and vomiting. Mild diarrhea presents as well-formed, watery stools, while severe cases have mucoid, bloody, or purulent stools, similar to bacterial dysentery, or even bloody stools. Stool frequency ranges from 6 to 10 times daily, with severe cases reaching up to 20 times. Foreign reports indicate that 60% to 90% of children with Campylobacter jejuni enteritis have bloody stools, while domestic reports show a range of 3% to 10%, possibly due to the pathogenic effects of different strain types. During the course of the disease, complications such as mesenteric lymphadenitis, appendicitis, cholecystitis, or sepsis may occur.
Fresh feces are examined under a dark-field microscope or a related