Disease Causative Agents

Enteric fever is the clinical term for typhoid fever, caused by Salmonella Typhi. It affects the intestines (enteric = relating to the intestine). Measles and mumps are viral diseases, while cholera causes different gastrointestinal symptoms.

Pyorrhea (periodontitis) is indeed a gum disease characterized by inflammation and infection of the tissues surrounding the teeth. It affects the periodontium including gums, periodontal ligament, and alveolar bone. The disease is caused by bacterial infection and can lead to tooth loss if untreated.

Ringworm (dermatophytosis) is indeed caused by fungi, specifically dermatophytes that grow on skin, hair, and nails. Despite its name, it is not caused by a worm. The infection creates a ring-shaped rash and is highly contagious, spreading through direct contact or contaminated surfaces.

Cholera is primarily transmitted through contaminated water and causes severe diarrhea. The bacterium Vibrio cholerae spreads through water sources with poor sanitation. Malaria is mosquito-borne, the common cold spreads through airborne droplets/contact, and mumps is an airborne viral infection.

Congenital diseases are those present from birth, which may be inherited or caused by factors during pregnancy. Contagious diseases spread from person to person, vector-borne diseases are transmitted by vectors like mosquitoes, and viral diseases are caused by viruses.

Infectious diseases are caused by microorganisms including bacteria, viruses, fungi, and protozoa. These microscopic pathogens invade the body and multiply, causing disease. Unicellular and multicellular organisms are too broad categories, and 'micro organisms' is the specific term for disease-causing microbes.

A vector is an organism (like a mosquito) that transmits a disease from an infected person to a healthy person. Viral refers to viruses, scalar is a physics term unrelated to biology, and congenital means present from birth.

Doctors describe MERS-CoV as a flu-like illness with signs and symptoms of pneumonia. Sufferers of MERS generally develop severe acute respiratory illness with symptoms like cough, fever, difficulty in breathing, chest pain, body ache, sore throat, malaise, headache, diarrhoea, runny nose, pneumonia and kidney failure.

This is untrue. Rhinovirus does not spread through mosquitoes.

Type 1 poliovirus was the common cause of epidemics. It is the most pervasive strain of poliovirus and highly infectious in nature.

Flavivirus is not an enterovirus. It does not colonise the intestines.

A person with fever, salivation and vesicular (blister-like) eruptions on the palms, fingers and toes is infected with foot and mouth disease virus.

Small rodents act as primary host in tick-borne encephalitis virus. It can complicate to paralysis and long-term brain damage.

This is the incorrect pair. Genital herpes is caused by HSV-2 virus.