In hypothyroidism, as the name indicates, there is a decline in the functioning of the thyroid gland The gland is either damaged as a result of an autoimmune disease of the thyroid gland, or in the case of an overactive thyroid gland, when more than the required amount of antithyroid drug has been administered

In the event that an early diagnosis has been missed in a case of hypothyroidism, it is never too late The disease must be diagnosed as soon as possible when it is in the most treatable condition

Snake-bite is one of the fatal diseases of the tropics A clinical epidemiological study shows that Asia occupies the first position in respect of the incidence of snake-bite

Rabies is a fatal acute viral infection of the central nervous system, and it is one of the most terrifying diseases which afflicts mankind Although the disease is more prevalent in tropical countries, it occurs worldwide, and its incidence is ever increasing

Following the poisonous sting, within minutes, the patient collapses suddenly, with grave symptoms and signs of poisoning If he does not collapse at once, beware, he is likely to collapse any time during the next half an hour, depending on the extent of the poison absorbed

Warning signals of tetanus should be kept in mind, because the disease could occur even when the injury is minor and totally forgotten In that case, probably, the injury was so minimal that the patient may not have cared to take a booster dose of the vaccination, or may have remained entirely unimmunized