Gapeworms are common in young, domesticated chickens and turkeys. When the female gapeworm lays her eggs in the trachea of an infected bird, the eggs are coughed up, swallowed, then defecated.hen birds consume the eggs found in the feces of an intermediate host such as earthworms, snails (Planorbarius corneus, Bithynia tentaculata and others), or slugs, they become infected with the parasite. The drug Ivermectin is often used to control gapeworm infection in birds.
Maguire and colleagues reported that Avastin delivered monthly cost an average of $595 and Lucentis cost $23,400. If the drugs were taken only as needed, rather than on a monthly basis, the cost dropped for both drugs, but Avastin was still the bargain choice: $385 for the year of treatment compared with $13,800.f the drugs were taken only as needed, rather than on a monthly basis, the cost dropped for both drugs, but Avastin was still the bargain choice: $385 for the year of treatment compared with $13,800.
1 For wet macular degeneration, in which a cluster of leaky blood vessels forms in the eye, a doctor might prescribe injections into the eye with bevacizumab (brand name Avastin), a chemotherapy drug that is used off-label, or pegaptanib (brand name Macugen) or ranibizumab (brand name Lucentis). And, according to Retinal Consultants of San Antonio, one treatment with Macugen costs about $1,250 -- or more than $21,000 for treatments every six weeks for two years. 2  Midwest Eye Care charges $2,700 for one treatment with Lucentis.