More research is needed to fully elucidate the lifecycle, but both larvae and adults appear to be infective. One recent case reported finding adult worms in the duodenum, which is the first presentation of adult worms not in the upper respiratory region. The adult worms might have been coughed up and reswallowed before settling in the duodenum.
More research is needed to fully understand the lifecycle, but both larvae and adults appear to be infective. A recent case revealed adult worms present in the duodenum, marking a novel finding of adult worms not residing in the upper respiratory tract. It's possible these worms were coughed up and then swallowed again before settling in the duodenum.