The method of passive immunization is used to combat active infections of tetanus, infectious hepatitis, rabies, snake bite venom, etc. Passive immunization is the transfer of antibodies from one person or animal to another, providing immediate but temporary protection against a specific disease. Unlike active immunization, it does not require the recipient's own immune system to create antibodies. This can happen naturally, such as when a newborn receives antibodies from its mother.

Treatment of malaria depends on the number of different factors that include disease severity, the particular species of Plasmodium infecting the patient and the potential for drug resistance of the various species and strains of Plasmodium. In general, it takes about two weeks of treatment to be cured of malaria.

There is no specific treatment for dengue. The focus is on treating pain symptoms. Acetaminophen (paracetamol) is often used to control pain. Non-steroidal anti-inflammatory drugs like ibuprofen and aspirin are avoided as they can increase the risk of bleeding.

Typhoid fever, also known as typhoid, is a disease caused by bacteria called Salmonella typhi. The only effective treatment for typhoid is antibiotics. It is usually spread through contaminated food or water.

The method of passive immunization is used to combat active infections of tetanus, infectious hepatitis, rabies, snake bite venom, etc, providing immediate but temporary protection against the disease.