Psittacosis is caused in humans by exposure to the bacterium, Chlamydia psittaci, which is most often transmitted to humans from infected birds, especially parrots and poultry, especially turkeys. Most infections occur from handling of infected birds themselves or by working in areas where such birds are kept or butchered (occupational exposure).
Despite any snickers from those who scoff at the notion, there are some instances where tax deductions are allowable if you have a dog. As noted on Dogster, if the status of your pooch falls in a certain category, the government might just cut you a bit of a break.
The donor may claim only a 300 USD deduction, because the amount contributed (375 USD) is reduced by the amount of the benefit that he received (75 USD, the fair market value of the ticket). This holds true even if the donor does not actually attend the dance. The taxable income of the donor is reduced by 300 USD.