An inoculation needle is an essential tool in inoculating a stab culture. Bacteria are tested for pathogenicity by inoculating multiple citrus species with the bacterium. Inoculating infected trees with nematophagous fungus alleviates the disease. Bacteria can be tested for pathogenicity by inoculating multiple citrus species with them. Chydenius practiced medicine and became known by inoculating ordinary people against smallpox. Inoculating a plasma test tube with the microbe indicates whether coagulase is produced. A scheme for inoculating poor people for smallpox was started in 1784. For example, blue cheese is made by inoculating the ripening cheese with specific bacterial molds. It is done by inoculating suspension of bacteria into guinea pig's eye. Production involves the milking of venom from redbacks and repeatedly inoculating horses with non-lethal doses. So-called blue cheese is created by inoculating a cheese with "Penicillium roqueforti" or "Penicillium glaucum". Morant had had various jobs, including inoculating chickens. In 1721, Cotton Mather and colleagues provoked controversy in Boston by inoculating hundreds. Some doctors followed up on this speculation by inoculating humans with horsepox.