rickettsial infection

Rickettsial Infection

Rickettsial infection refers to a group of zoonotic diseases caused by obligate intracellular Gram-negative bacteria of the genus Rickettsia and related organisms. These pathogens are…
rickets

Rickets

Rickets is a pediatric skeletal disorder resulting from defective mineralization of the growth plates due to prolonged deficiency of vitamin D, calcium, or phosphate. The…
riboflavin deficiency

Riboflavin Deficiency

Riboflavin, also known as vitamin B2, is a water-soluble vitamin critical to numerous cellular processes. It acts as a precursor to flavin mononucleotide (FMN) and…
rhinorrhea

Rhinorrhea

Rhinorrhea, commonly known as a runny nose, is characterized by excessive nasal discharge. It may present as a watery, mucoid, or purulent fluid and can…
rhinocerebral phycomycosis

Rhinocerebral Phycomycosis

Rhinocerebral phycomycosis, also referred to as rhinocerebral mucormycosis, is a fulminant, angioinvasive fungal infection predominantly caused by fungi of the order Mucorales, especially Rhizopus species.…
rhinitis

Rhinitis

Rhinitis is the inflammation of the nasal mucosa, a condition characterized by symptoms such as nasal congestion, rhinorrhea (runny nose), sneezing, and itching. This widespread…
rheumatoid arthritis

Rheumatoid Arthritis

Rheumatoid arthritis (RA) is a chronic, systemic autoimmune disorder primarily affecting synovial joints. Unlike osteoarthritis, which results from wear and tear, RA is characterized by…
rheumatic fever prevention

Rheumatic Fever Prevention

Rheumatic fever (RF) is a serious inflammatory condition that arises as a delayed autoimmune response to untreated or inadequately treated Group A streptococcal (GAS) pharyngitis.…
rheumatic fever

Rheumatic Fever

Rheumatic fever is an autoimmune inflammatory disease that can develop after an untreated or inadequately treated Group A streptococcal (GAS) pharyngitis, commonly known as strep…