A gapeworm (Syngamus trachea), also known as a red worm and forked worm, is a parasitic nematode worm infecting the tracheas of certain birds.The resulting disease, known as gape or the gapes, occurs when the worms clog and obstruct the airway.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.
1 The price of Avastin, as charged by Genentech, ranges from $4,000 to over $9,000 per month, depending on the weight of the patient and the type of cancer they suffer from.2  According to this New York Times article, the costs of Avastin can reach up to $100,000 per year without health insurance. The price of Avastin, as charged by Genentech, ranges from $4,000 to over $9,000 per month, depending on the weight of the patient and the type of cancer they suffer from.
Based on the current cost of supplying bevacizumab (Â£1,848.80 per month for a 70 kg person) and the median length of time that treatment is required for (approximately 10 months), the cost of bevacizumab would be around Â£18,500 per patient treated.n Canada, the cost is to the tune of $40,000 per year. In the United States, insurance companies have refused to pay for all or part of the costs of Avastin therapy and reimbursement is also restricted in Canada due to the low benefit-to-cost ratio.