94% of patients had fever, 92% cough, 66% of a sore throat, 25% diarrhea or nausea with vomiting. Effects of Tamiflu and Relenza not yet been confirmed. 

On 7 May 2009 was the eleventh confirmed influenza case of the new swine flu influenza H1N1 in Germany by the Robert Koch Institute (RKI). A man from Bavaria had become infected in the United States. Meanwhile, it is in the state of Bavaria, the sixth case of swine flu, swine flu two cases, there is in Brandenburg and Saxony-Anhalt, a swine flu case in Hamburg. News to the American Novel Swine-Origin Influenza A (H1N1) virus has Investigation Team "swine flu symptoms of 642 U.S. swine flu cases on 7th May 2009 in the New England Journal of Medicine published. 

Of 15 April 2009 until 5 May 2009 were in 41 states of the U.S. total of 642 confirmed cases of swine flu. Patient number one was a nine year old girl from California, the swine flu virus was the first gene sequence under A/California/04/2009 H1N1 has been published in the GenBank. The age of the 642 patients ranged from 3 months old infants to 81 years old patients. Mostly school children and young people were infected, 60 percent of all patients were younger than 18 years. Only 5 percent of the patients were older than 51 years. 

The clinical picture of swine flu appeared as the most common flu symptoms fever in 94 percent of all patients. 92 percent of the swine flu patients were suffering from cough. As a further symptom occurred in 66 percent of all patients, a sore throat, every 25 percent of the patients suffered from diarrhea or nausea with vomiting. The disease course of the new swine flu is described as relatively uncomplicated respiratory disease with symptoms similar to seasonal flu. Of 399 known cases, only 9 percent of patients were hospitalized. 11 patients suffered of pneumonia, 8 patients came to the ICU, two swine flu patients died. 

Genetic analysis of the pig flu genetic material to show that the swine influenza virus type A/H1N1 is apparently resistant to the older flu drugs, amantadine and rimantadine. On the other hand, seem to genetic analysis, the newer flu drugs oseltamivir (Tamiflu) and zanamivir (Relenza) and neuraminidase inhibitor effect. The clinical effect of Tamiflu and Relenza, however, is still not yet proven ms sim o0AD flu. Of 399 known cases, only 9 percent of patients were hospitalized. 11 patients suffered of pneumonia, 8 patients came to the ICU, two swine flu patients died.