Disease Causative Agents

Viruses are bigger in size than bacteria, is a false statement. Thus, it is the correct option. Viruses are much smaller in size than bacteria.

Pea soup diarrhoea is the feature of Typhoid fever. This is an acute bacterial disease caused by Salmonella typhi. Typhoid germs are passed in the feces and, to some extent, the urine of infected people. The germs are spread by eating or drinking water or food contaminated by feces (or urine) from the infected individual.

If one can diagnose urethritis and cervicitis, the disease is most likely to be Gonorrhea. Most of the time, a urine test can be used to test for gonorrhea. However, if a person has had oral and/or anal sex, swabs may be used to collect samples from the throat and/or rectum. In some cases, a swab may be used to collect a sample from a man's urethra (urine canal) or a woman's cervix (opening to the womb).

Typhoid fever is a severe infection caused by a bacterium, Salmonella typhi. S. typhi is in the same family of bacteria as the type spread by chicken and eggs, commonly known as salmonella poisoning or food poisoning. S. typhi bacteria do not have vomiting and diarrhea as the most prominent symptoms of their presence in humans. Instead, persistently high fever is the hallmark of S. typhi infection. 

A virus is non living and relies solely on the 'host' for survival. Viruses are so primitive that many scientists consider them to be both living and nonliving things. By itself, a virus is a lifeless particle that cannot reproduce. But inside a living cell, a virus becomes an active organism that can multiply hundreds of times. 

Pathogens are organisms, frequently microorganisms, or components of these organisms, that cause disease. Microbial pathogens include various species of bacteria, viruses, and protozoa. Many diseases caused by microbial pathogens, and the frequency of these diseases, are a national security issue. 

Placentitis is the infection of placenta by bacteria that migrate along the reproductive tract.

AIDS can pose a serious threat to the economic and social development of South Asian countries including India, which has chunk of regions HIV infected population, the World Bank has said. There are estimated 2.6 million people suffering from the dreaded disease in the region. 

Common human diseases caused by viruses include the common cold, influenza, chickenpox and cold sores. 

Cancer is a disease caused by the uncontrolled division of abnormal cells, not by a viral infection. Rabies, AIDS, Influenza, and SARS are all caused by viruses.

Hereditary diseases are passed down from parents to offspring through genes. Infectious diseases are caused by pathogens, and deficiency diseases result from poor nutrition.

Human diseases are categorized as congenital (present at birth) or acquired (developed after birth).

Infectious diseases are caused by the invasion of living organisms like bacteria, viruses, or fungi. These are also known as communicable diseases.

Jaundice is a symptom of liver dysfunction, often associated with hepatitis, which is the inflammation of the liver.

Pathogens are biological agents, such as bacteria or viruses, that cause disease in their hosts.