Plague primarily spreads through Bacteria. It is caused by the bacterium Yersinia pestis. Transmission occurs through the bite of infected fleas, handling of infected animals, or inhaling respiratory droplets from infected individuals, particularly in pneumonic plague.
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Rabies is a Viral disease. It is caused by the rabies virus, which belongs to the Rhabdoviridae family. Rabies affects the central nervous system and is typically transmitted through the bite of an infected animal, leading to severe neurological symptoms ...
The BCG vaccine is typically given to newborns, so the correct answer is Newborn. It is administered shortly after birth, usually within the first few days to weeks of life, to provide protection against tuberculosis (TB) in infancy.
The contraceptive pills available in the market typically contain Steroid Hormones. These hormones, such as estrogen and progestin, regulate the menstrual cycle and prevent ovulation, thereby inhibiting pregnancy when taken as directed.
Malaria being spread by female Anopheles mosquitoes was first discovered by Ronald Ross. He made this groundbreaking discovery in 1897 while working in India, which led to significant advancements in understanding the transmission and control of malaria.
The disease transmitted only by inheritance among the options is Haemophilia. It is a genetic disorder characterized by a deficiency in clotting factors and is inherited through a recessive X-linked pattern, primarily affecting males.
Malaria parasites that cause deadly malaria are Plasmodium falciparum. This species is responsible for the majority of severe malaria cases and deaths globally, making it the deadliest of the malaria parasites.
The virus that causes AIDS was identified in the year 1983. This significant discovery marked the isolation and characterization of the Human Immunodeficiency Virus (HIV) by scientists Françoise Barré-Sinoussi and Luc Montagnier in France.
Kala-azar is transmitted by Anopheles fly. It is caused by the protozoan parasite Leishmania donovani, which is transmitted to humans through the bite of infected female sandflies of the genus Phlebotomus (Old World) or Lutzomyia (New World).
HIV is a viral disease. HIV (Human Immunodeficiency Virus) is a lentivirus that attacks the immune system, specifically CD4 cells (T cells), weakening the body’s ability to fight infections and diseases, eventually leading to AIDS (Acquired Immunodeficiency Syndrome).