Infectious diseases are illnesses caused by microorganisms such as bacteria, viruses, fungi, and parasites that can spread from one person to another. Animals can also transmit these diseases to humans.
Some common examples include the flu, tuberculosis, pneumonia, HIV/AIDS, and COVID-19. They can be spread through various means, such as:
Treatment for infectious diseases varies depending on the type of microorganism causing the disease, as well as the severity of the infection. Some infections can be treated with antibiotics, while others, such as viral infections, cannot be treated with antibiotics and require other forms of treatment. Prevention of infectious diseases involves practicing good hygiene, such as washing hands frequently and covering one’s mouth and nose when coughing or sneezing. Vaccines can also play an important role in preventing the spread of certain infectious diseases.
This category deals with all kinds of infectious diseases like bacterial infections, viral infections, fungal infections, and parasite infections.
Introduction Tuberculosis (TB) is a potentially fatal contagious disease primarily affecting lung parenchyma. In most cases, an acid-fast bacillus (AFB), Mycobacterium tuberculosis causes TB. TB, a multi-systemic disease with a wide range of manifestations and presentations, is the leading cause of infectious disease-related mortality worldwide. Approximately 30% of people worldwide are infected with this pathogen, … Read more
Introduction Hepatitis C is a contagious liver disease that results from infection with the hepatitis C virus (HCV). HCV is a hepatotropic RNA virus that belongs to the family Flaviviridae. HCV causes progressive liver damage, which might result in liver cirrhosis and hepatocellular carcinoma. Types of Hepatitis C Acute Hepatitis C Chronic Hepatitis C Incidence … Read more
Introduction Hepatitis A is a highly contagious, short-term liver illness caused by the hepatitis A virus (HAV), a member of the Picornaviridae family of viruses with a single standard RNA and no envelope. Although it affects people everywhere, impoverished countries are where it is most common. The virus is frequently found in high amounts in … Read more
Introduction Hepatitis B is a serious and common infectious disease of the liver caused by a Hepatitis B virus (HBV), an enveloped virus containing a partially double-stranded DNA genome belonging to the ‘Hepadnaviridae’ family Incidence Types of Hepatitis B Infection There are two types of hepatitis B infections: Acute Hepatitis B Infection Chronic Hepatitis B … Read more
Introduction Methicillin-resistant staphylococcus aureus (MRSA) is a group of opportunistic pathogens that has emerged as a widespread cause of both community- and hospital-acquired infections. Types of MRSA Health-care-associated MRSA (HA-MRSA) Community-associated MRSA (CA-MRSA) Incidence Mode of Tansmission of MRSA Causes of MRSA Who are at Risk for MRSA infection? MRSA infection can occur in any … Read more
Introduction Incidence Types of Meningococcal Disease Meningitis Meningococcemia (Meningococcal septicemia) Other types Meningococcal pneumonia Signs and symptoms of Meningococcal Disease Patient with meningococcal meningitis presents with following symptoms Patient with meningococcemia presents with following symptoms Initial symptoms include Later symptoms include Risk factors Anyone can get meningococcal disease but certain people are at risk, including … Read more