AP examines H1N1 surveillance by U sildenafil 100 mg .S., WHO The Associated Press examines how the decision by U.S. ‘The Centers for Disease Control and Prevention is counting on a patchwork program of gathering death and hospitalization numbers. Some claims are reporting lab-confirmed cases. Others report ailments that could be the new swine flu, seasonal flu or some other respiratory disease,’ the news service writes. ‘The WHO has continuing to revise swine flu reports, but with the disclaimer that since countries are no required to test and report cases longer, WHO’s numbers underestimate’ .S. Patients who became seriously ill or passed away from H1N1. ‘The analysis of 272 patients ill enough to be hospitalized showed about 40 % had diarrhea and vomiting – – generally rare with seasonal flu – – and confirmed that quick treatment with antivirals could conserve lives,’ the news headlines service writes .