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.
Reference Range. Pertussis is a respiratory tract infection caused by the gram-negative coccobacillus Bordetella pertussis. Pertussis is transmitted by droplet transfer (usually from sneezing or coughing) from an infected person. Pertussis is also known as whooping cough.escription. Pertussis is a respiratory tract infection caused by the gram-negative coccobacillus B pertussis. Pertussis is transmitted by droplet transfer (usually from sneezing or coughing) from an infected person. Pertussis is also known as whooping cough.