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.
The cost of Lucentis, a drug specifically formulated for the eye, is approximately $2,000 per intravitreal dose, while Avastin, formulated for intravenous use and available in larger quantities that can be compounded into smaller units, costs approximately $60 per intravitreal dose.t present, the prevalence of AMD is 15 million with nearly 2 million suffering from advanced disease.1 Fortunately, our treatment armamentarium now has effective therapies to combat neovascular AMD, which is responsible for the bulk of patient morbidity.