Recent research for alleviating the symptoms of Parkinson’s disease involves stereotaxic procedures. These procedures are typically done when patients no longer respond to antiparkinson drugs. These procedures include transplantation of fetal tissue in an attempt to reestablish the secretion of dopamine in the neostriatum . Researchers have also attempted strategies of gene therapy. A genetically modified virus was inserted into the subthalamic nucleus of patients with Parkinson’s disease. This virus delivered a gene for GAD , which is the enzyme responsible for the biosynthesis of the major inhibitory neurotransmitter, GABA . In the study, GAD turned some of the excitatory glutamate-producing neurons in the sub-thalamic nucleus into inhibitory, GABA-producing neurons, improving the symptoms of Parkinson’s disease. 
But it’s not just Facebook that has problems with China, major Western technology companies like Google and Twitter are also shut out of the country. China’s government has been resistant to the explosion of the internet from the beginning, but it made certain allowances knowing that completely blocking the internet wasn’t an option in the modern world. Now, the growth of its own technology sector has given it a sort of parallel internet that can be controlled from within. Domestic companies like Baidu and Tencent offer search, microblogging, messaging, and other alternatives to the most popular web services. They also can’t tell Chinese censors “no.”
Despite the lack of interest of his fellow scientists, he did conduct several experiments on the antibiotic substance he discovered. The most important result proved it was nontoxic in humans by first performing toxicity tests in animals and then on humans. His following experiments on penicillin's response to heat and pH allowed Fleming to increase the stability of the compound.  The one test that modern scientists would find missing from his work was the test of penicillin on an infected animal, the results of which would likely have sparked great interest in penicillin and sped its development by almost a decade.