is going on in China. It has to be. Either there is not enough vaccine being used or there is substandard vaccine being used. Probably both. It's not just China. We can't blame China for substandard vaccines. I think there are substandard vaccines for influenza in poultry all over the world." In response to the same concerns, Reuters reports Hong Kong infectious disease expert Lo Wing-lok saying that "The issue of vaccines has to take top priority", and Julie Hall, in charge of the WHO's outbreak response in China, saying that China's vaccinations could be "masking" the virus. The BBC reported that Dr Wendy Barclay, a virologist at the University of Reading, UK said: "The Chinese have made a vaccine based on reverse genetics made with H5N1 antigens, and they have been using it. There has been a lot of criticism of what they have done, because they have protected their chickens against death from this virus but the chickens still get infected; and then you get drift - the virus mutates in response to the antibodies - and now we have a situation where we have five or six 'flavours' of H5N1 out there." Some have called for tax breaks due to H5N1. A May 7, 2006 report from India E-News states that: "Pakistani poultry farmers have sought a 10-year tax exemption to support their dwindling business after the detection of the H5N1 strain of bird flu triggered a fall in demand and prices, a poultry trader said. "We have asked the government to give us tax exemption on income from the poultry business for at least 10 years to meet losses caused by the bird flu scare", Abdul Basit told DPA. Basit, vice president of the Chamber of Commerce and Industry (LCCI) in the country's commercial hub of Lahore, was part of a delegation of the Pakistan Poultry Association, which met food ministry officials to present their demand. The federal poultry board of the food ministry is to meet on May 9 to consider the tax-cut demand for the poultry business in the upcoming national budget due in mid-June." Social Reuters reported that WHO expert Hassan al-Bushra said: Even now, we remain unsure about Tamiflu's real effectiveness. As for a vaccine, work cannot start on it until the emergence of a new virus, and we predict it would take six to nine months to develop it. For the