Hydrocarbons are non-polar. Water is polar. So from âlike dissolves likeâ you wouldnât expect any of these three to be very soluble in water. In fact, unsaturated and aromatic hydrocarbons are slightly soluble in water- the solubility of toluene in water is ~500mg/L â not very much. Cyclohexene is even less than that.
Pertussis, or whooping cough, is a highly contagious disease involving the respiratory tract. It is caused by a bacterium, Bordetella pertussis, which is found in the mouth, nose and throat of an infected person. person can transmit pertussis from seven days following exposure to an infected person, to three weeks after the onset of coughing episodes. Pertussis is only contagious for 5-7 days if antibiotic therapy is begun.
The symptoms of pertussis are similar to a common cold: runny nose, sneezing, mild cough, and low-grade fever. [1]. Bordetella pertussis has several virulence factors, one of which is the adenylate cyclase toxin (CyaA). It is the agent that causes whooping cough.he current Bordetella pertussis vaccine is a whole-cell vaccine which means that the vaccine uses whole dead B. pertussis cells. The whole-cell vaccine has been very effective for the majority of the population, but some people develop severe adverse reactions to this vaccine.