Are clinical phenotypes of Chinese primary hyperparathyroidism patients associated with the calcium-sensing receptor gene R990G polymorphism?
The R990G polymorphism is most frequently present in the Chinese population and among patients with PHPT. Additional studies in the Chinese population are needed to elaborate the relationship between genetics and PHPT.
Fewer than one third of travellers receive vaccines but the total cost of providing typhoid and hepatitis A prophylaxis of 25.8m pounds is significantly higher than the treatment costs to the NHS (1.03m pounds) of cases avoided by prophylaxis. Neither hepatitis A prophylaxis nor typhoid prophylaxis is cost effective, but costs of treating malaria greatly exceed costs of chemoprophylaxis, which is therefore highly cost effective.