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Infectious Diseases: Most Popular Articles

These articles are the most popular over the last month.
What Is Salmonella and How Can You Avoid It?
Salmonella seems to be making its way into the news more and more each year, but is it something we should be worried about? Find out which kinds of diseases are caused by Salmonella and how to avoid getting it.
How Kissing Can Spread Infectious Diseases
Mononucleosis, or nono, is known as the “kissing disease,” but did you know that there are several infectious diseases that can be spread through kissing and saliva?
The 10 Best Ways to Prevent Infectious Diseases
What's the best way to prevent you and your loved ones from getting sick from infectious microbes? Look beyond the obvious and learn some important tips for staying healthy.
How Do You Know You Have Tuberculosis?
Active Tuberculosis or TB is a deadly disease that is on the rise in the U.S. Find out what causes active TB, what its symptoms are, and what treatment options are available
What’s the Difference Between Tuberculosi...
Latent tuberculosis or TB is an infection that is not symptomatic or contagious. What causes latent tuberculosis? How do you know if you have it? What precautions should you take if you have it?
Can Clostridium Difficile Cause Colitis?
Clostridium difficile bacterial disease is on the rise, causing more and more cases of hospital-borne infection. Find out the symptoms of Clostridium difficile colitis and how to treat and prevent infection. Read more about Toxins A and B of Clostridium difficile and how they contribute to the disease.
Is It Safe to Eat Raw Fish?
What are the infectious disease risks associated with eating sushi? Read about parasites and other microbial infections associated with raw or undercooked fish.
Ringworm Fungal Infections of the Skin
Find out more about ringworm fungal infections of the skin. Learn about its symptoms, diagnosis, treatment, and prevention.
What is Cellulitis?
Cellulitis is very common. It can start suddenly with a blotch of red or a patch of hot skin.
Do You Get Sick Often? Why You May Be...
Glossary definition of immunocompromised
Cold Sores Caused by Herpes Virus
Cold sores are caused by Herpes Simplex Virus Type 1 (HSV-1). Find out about symptoms, prevention, and treatment of cold sores and oral herpes infections
Is Tuberculosis Still a Worldwide Epidemic?
Tuberculosis, or TB, also known as consumption, is a worldwide epidemic that is on the rise in the U.S. Find out about its symptoms, diagnosis, treatment, prognosis, and prevention.
Everything You Need to Know About Strep Throat
Strep throat is a common kids' infection that is more prevalent in the winter and spring months. Find out about its symptoms, treatment options, prevention methods, and complications associated with the diseases.
Hand, Foot, and Mouth Disease
Hand, Foot, and Mouth Disease is a common childhood infection associated with outbreaks in child care settings. It is usually caused by Coxsackie virus or Enterovirus 71. Learn about its symptoms, diagnosis, treatment, and prevention of the disease
Are Pickles and Smoked Salmon Really Good for...
Preserving food with salt is an ancient human practice that dates back before written records. Beef jerky, pickles, and smoked salmon are all examples of common foods that are preserved using salt. But are salty foods really safer to eat?
Legionella is back
A recent outbreak of Legionnaire's Disease has shown how overlooked the important, ever-present, yet potentially deadly Legionella bacteria can be
Your doctor said you need another Pneumonia...
The CDC is now recommending those over 65 have a second vaccine to prevent streptococcal pneumonia.
Ouch! Shingles hurts. What to do about it.
Did you have chickenpox? Then you're at risk for developing shingles. 1 in 3 older adults will. There's a vaccine to prevent herpes zoster (shingles).
Can You Get Sick From Cow's Milk?
It's a staple in most households, but do you know the infectious disease risks associated with milk and other dairy products? Why is pasteurization important? How do you prevent milk-borne diseases?
Everything You Need to Know About a Sore Throat
Sore throats are usually caused by infectious microbes. Find out how sore throats occur and which microbes are commonly implicated in infections that cause sore throats
Dengue, there's a reason it's called Break-bone...
Dengue Fever has spread into new areas and reached the US. The mosquitoes that could potentially carry dengue are found as north as Chicago and New York.
How to Choose the Right Antibiotics for...
With so many different kinds of antibiotics available, how does your health care provider know which to prescribe? Find out what your doctor needs to know before choosing the right antibiotic.
6 Ways to Tell if You Have Strep Throat
What is strep throat? What are its symptoms? How is it diagnosed and treated? Why do I need to take all of the antibiotics if I'm already feeling better? Find out answers to these questions and more.
What Can Cytomegalovirus Mean for Your Unborn...
Cytomegalovirus, or CMV, is the largest of all viruses and infects most people some time in their life. Most infections are harmless, but transmission of the virus from pregnant women to their fetuses can cause permanent disabilities.
Is It Strep Throat or Just a Cold?
How do you know if you have strep throat or just a sore throat from a cold? Find out how to distinguish if it is strep throat and find out what your doctor will look for.
Epidemiology 101: Outbreak Investigation
What exactly is an outbreak, and why is it important to investigate it? What do epidemiologists do when investigating an outbreak?
Evolution of Personal Hygiene
Did you know that people did not always wash their hands before eating or after going to the bathroom? How was the importance of clean water discovered? What kind of impact did invention of the flush toilet make on society? Find out how personal hygiene evolved from the mid-19th century to the daily practices we use today.
What causes Salmonella to spread?
Apparently Bearded Dragons, Dog Food, hedgehogs, and almond butter have this in common...they've been spreading Salmonella in the US.
Why Is Mono Nicknamed the Kissing Disease?
Mono or Mononucleosis is sometimes called the Kissing Disease because it is common among young adults and teenagers and spread through saliva. Find out more about symptoms of Mono and how to treat the disease.
What Every Parent Should Know About Pertussis
Learn about symptoms, diagnosis, treatment, and prevention of Whooping Cough, also known as Pertussis, caused by the bacteria Bordatella pertussis.
What to know about Influenza B
It shouldn't be overlooked. It can make you just as sick as other Influenza types, even though it is less common.
How come doctors don't get sick?
Health care professionals take many steps to avoid infections spreading between patients or to themselves in hospitals.
So You Have a Urinary Tract Infection
Urinary tract infections are common. Millions will have one each year. Here's what you need to know.
Diarrhea Got You Down In the Dumps? How to...
Diarrheal diseases are a significant cause of sickness and death throughout the world. Read more about the different kinds of diarrhea and the kinds of microbes that cause these infections. Get tips on treatment and prevention of diarrhea.
You don't need to get a shot to get a flu vaccine
You don't like needles? No problem, there's a needle-less flu vaccine.
Definition of Protozoa
Glossary definition of protozoa. Infectious Diseases.
Jock Itch Profile
Jock Itch, or ringworm of the groin, is a fungal infection that affects the groin and inner thighs. Find out more about its symptoms, diagnosis, treatment, and prevention.
5 questions answered about Tetanus
The bacteria that causes Tetanus is found in soil worldwide. A rusty nail is all it takes to create an infection. It's vaccination that has kept it in check.
What you should know about Bird Flu
There isn't just one type of flu. There are a bunch and some can be more worrisome - like Bird Flu, Swine Flu, and even Flu in dogs.
What is Chagas?
Chagas. It's a disease that affects millions throughout Latin America - but also increasingly in the US. It's complications can be delayed and severe.
What to know about Mumps
Mumps is a viral disease characterized by “chipmunk cheeks”. It is preventable with the MMR vaccination. Find out more about symptoms, diagnosis, treatment, and prevention of Mumps
Can a cat scratch be dangerous?
Cats can be cute - but they bring home more than mice. Scratches and bites can cause infections, from cat-scratch disease to MRSA bacteria to rabies.
E. coli O157:H7
What is E. coli? Are all strains of E. coli dangerous? What are its symptoms? Where do you get it? How do you prevent disease?
What can happen if a rat bites me?
More and more kids have rats as pets. These clever animals may be putting kids at risk for a rare, but deadly, infection.
How E.Coli Causes Disease
E. coli O157:H7 is a common cause of foodborne outbreaks, causing hemorrhagic colitis, characterized by bloody diarrhea.
Community-Acquired Methicillin-Resistant Staph...
CA-MRSA, or community-associated methicillin-resistant Staphylococcus aureus, has been a growing concern among athletes, students, and military recruits. Find out some important facts about the MRSA superbug and how you can avoid CA-MRSA infections.
Wow does that itch. What could it be?
Scabies itches. Find out more about the disease, what it looks like in pictures, and how to treat it.
Invasive Candidiasis - Systemic Candida Fungal...
Profile of Invasive Candidiasis that causes a systemic fungal infection. Symptoms, diagnosis, and treatment.
Can Infections During Pregnancy Pose a Risk to...
Serious birth defects and even fetal death can occur following some infections in pregnant women. Find out which infectious diseases can lead to long-term defects and whether or not you should be tested for them.
Profile of Typhoid Fever Caused by Salmonella...
Find out symptoms and treatment of Typhoid Fever. Learn how Salmonella Typhi causes Typhoid Fever and how to avoid getting it.
Definition of Microbiology
Glossary definition of microbiology
Can You Get Cholera From Drinking Water?
Find out about symptoms, treatment, and prevention of cholera, caused by the bacteria, Vibrio cholera. Learn about the epidemiology of this common epidemic and tips for travelers on preventing infection.
How Stress Increases Your Risk of Disease
Can stress really increase your likelihood of getting sick? How does stress impact your immune system? Which infections are you more prone to getting when stressed? What can you do about it?
Can Astronauts catch a Cold in Space?
There's not much out there in Outer Space. Can astronauts still get sick?
Profile of Thrush caused by Candida fungi. Symptoms, diagnosis, and treatment.
Definition of Pathogen
Glossary definition of pathogen. Infectious Diseases.
There might be a way to treat bacteria without...
There might be a crazy new way to treat bacterial infections. Thing is, it's not new or crazy.
7 things you might not know about a disease...
There's another kind of malaria - Plasmodium Vivax. It's not as dangerous as some kinds, but it can keep coming back.
4 Things to know about XDR Tuberculosis
Tuberculosis seems like a disease that's gone away. It hasn't. It now can sometimes resist meds in ways it never could before.
Why do you need an Influenza Vaccine this year?
There's more to influenza vaccines than we think - multiple vaccines, multiple strains, multiple brands. Find out more:
Good Bacteria and Bad Bacteria: Learn the...
We carry probably 10 times more bacteria than human cells in our bodies. We are just beginning to understand the effects of these microorganisms and probiotics.
Healthcare-Acquired Methicillin-Resistant...
Hospital-acquired or healthcare-associated methicillin-resistant Staphylococcus aureus, or HA-MRSA, comprises a large proportion of MRSA infections in the US. Find out more about symptoms of MRSA associated with hospital settings, treatment options, and tips for prevention
Don't fall for these 10 Myths about Malaria
There are myths about preventing malaria. This is a disease that deserves respect. It takes over half a million lives a year worldwide
Toxoplasmosis Congenital Disease
Toxoplasmosis, caused by Toxoplasma gondii, can cause a nasty congenital infection in fetuses. The infection is transmitted from cat or kitten feces to pregnant women to their unborn babies. Find out about the symptoms, diagnosis, treatment, and prevention of Toxoplasmosis.
Chicken-what? The spread of Chikungunya worldwide
Chikungunya is a viral infection causing joint pain and fevers spread by mosquitoes. A bite by a mosquito in Florida or Texas could possibly spread the disease.
Another virus out there, MERS
A virus in the Middle East has been worrying some doctors. This time it's from Camels. Yes, Camels.
Are you losing your hair and don't know why?
Sometimes an infection is the reason for balding and hair loss. Find out more.
What a bright red tongue might mean
Scarlet Fever was once a common disease of childhood. The bacteria that causes strep throat causes the disease, but good hygiene and antibiotics have halted it. It's been creeping back, though.
Ear Infections – Otitis Media
Ear infections, or otitis media, are a common childhood infection, afflicting most infants and small children. Find out what are ear infections, and their symptoms, diagnosis, prognosis, treatment, and prevention.
Diagnosis of an Infection: Microbial Cultures
Infectious diseases often require diagnosis using a culture of a sample from the infected site. What is a culture, and how is it used to diagnose an infection?
Will I get an Infection with my Tattoo?
A tattoo. You've debated, you've decided. Now one thing you should know about infections and tattoos.
How do you catch Herpes?
Herpes is more common than you'd think. What you can do to avoid to avoid catching herpes.
The Aches and Pains of Chikungunya
Chikungunya has spread in the Caribbean, Central and South America and has now been found in Florida and Texas. The disease can cause joints to be painful for months.
What is West Nile Virus?
An infection that was a surprise in 1999 has become a part of the summer throughout the US. A mosquito bite makes West Nile an unwanted summertime visitor.
What You Need to Know About Enterovirus and...
As parents have learned this common disease can have serious symptoms, especially strain Enterovirus-D68 - EV-D68. Other strains cause the more mild Hand, Foot, and Mouth Disease.
A raw fish parasite
Scared of sushi? The Anisakis worm is a parasite that can cause nasty infections in humans who enjoy eating raw fish.
Disproving the Myths of Milk Pasteurization
Pasteurization of milk is an important process that limits the spread of milk-borne infectious diseases. Learn more about the different processes used for pasteurization. Find out the truth about pasteurized vs. raw milk.
The Complete Guide to a Germ-Free Kitchen
Good hygienic cooking and food preparation practices in your kitchen are essential for limiting the possible spread of foodborne infectious diseases.
What is pneumonia?
Pneumonia is a disease that affects those most vulnerable, the old and the young.
Strep Throat Diagnosis
Strep throat is diagnosed by clinical symptoms, throat cultures, and rapid antigen detection tests. Find out how each of these diagnostic measures are conducted.
The MMR Vaccine: Measles, Mumps, and Rubella
The MMR vaccine is a combination vaccine made up of three live, attenuated viruses, Measles, Mumps, and Rubella. Find out more about the MMR vaccine and who should or should not receive it. Learn about its safety and effectiveness against these three childhood viruses.
6 Terrifying Parasites that Humans Can Get
There are ghoulish, creepie-crawlies and then there are real ones. Medicine has its own: Loa Loa eye worms, Cutaneous Larva Migrans under our skin, and Myiasis larvae.
What are antibiotics? Where do they come from? How do they work?
The Threat of Methicillin-Resistant Staphylococ...
Infections from methicillin-resistant Staphylococcus aureus, also known as the MRSA superbug, have been increasing over the past decade. Find out what the MRSA superbug is and why it's a problem. Learn about symptoms of different kinds of MRSA, treatment options, and tips for prevention.
What Is Bacteria?
Understanding the definition of bacteria and its role in biology and disease.
Food Poisoning: Staphylococcus aureus in Food
Explosive vomiting and tummy troubles after the school picnic? Sounds like Staphylococcus aureus food poisoning. Find out what foods are commonly contaminated with Staph and whether or not you should be worried.
What kind of worms can infect you?
Worms. They're a lot more common than we think.
Ever wonder about the risks of Adventure Racing?
Leptospirosis is a disease that strikes athletes of adventure sports and those living crowded, flooded areas. It is found around the world, but is often not diagnosed.
Definition of Gram Stain
Glossary definition of gram stain
What is Leprosy?
Leprosy, also known as Hansen's disease, has caused disfigurement and stigma throughout history. It's close
When Arthritis Is Contagious
Infectious Arthritis is sometimes associated with Bull's Eyes and Lyme Disease. There's more to it.
What's the problem with Mumps?
Mumps was once a common disease. Its symptoms were less severe in children. It is now likely to affect a higher percentage of adults, who have more complications.
What Is Listeriosis?
What is Listeria, and how do I avoid getting it? Who should avoid eating soft cheeses and deli meats? Is my fetus at risk?
7 Things you didn't know about HPV
Take charge of your health. HPV is an infection most of us get. It's about much more than just Pap smears. Find out more.
Measles, also known as Rubeola, is a leading cause of death of young children worldwide, despite the availability of an inexpensive and effective MMR vaccine. Find out about symptoms, diagnosis, and prevention of measles.
The 15 germs that might give you food poisoning
It's holiday time. This means there are leftovers and foodborne infections for some. Find out what you need to know about the different causes of food poisoning.
Superbugs on the Rise
Superbugs are bacteria that are resistant to multiple kinds of antibiotics, making treatment a challenge. Find out which strains of bacteria are becoming superbugs and are becoming public health issues.
Can You Get an Infection from a Hospital or...
Glossary definition of nosocomial infection
4 Infections Contact Lenses Put You at Risk For
A pair of ghoulish white eyes may seem perfect for a Halloween costume, but contact lenses can lead to a serious eye infection if not used correctly.
Definition of Superbug
Glossary definition of Superbug. Infectious Diseases.
Common Kids’ Infections (0 to 12 years)
Get quick summaries of common infectious diseases in kids (ages 0 to 12 years) and how to diagnose, treat, and prevent them.
What is the risk of Meningococcal Meningitis...
It strikes college students and infants suddenly - but rarely. It's a disease of kissing and close contact. What is meningococcal disease?
Definition of Fungi
Glossary definition of fungi. Infectious Diseases.
Oh great another Superbug to worry about, CRE....
There are more and more Superbugs - bacteria like MRSA and VRE that can resist a wide range of antibiotics that used to stop them. Now another Superbug, CRE, is making headlines.
Can a kitten be dangerous?
Cats are awfully cute, but sometimes they spread human infections - anything from ringworm to salmonella to toxoplasmosis to latent tuberculosis (TB). Luckily, this is rare.
The name says it all: Fecal Transplant
There are heart transplants, lung transplants, kidney transplants, but Stool Transplants? Yes, stool transplants. They treat infections like C Diff (Clostridium difficile).
What to know about the Giardia parasite
Giardia is a disease that can be found in wells, lakes, puppies, and daycares. It can also cause chronic fatigue and irritable bowel, so it is important to avoid.
How do healthcare workers protect themselves...
Healthcare workers have to follow strict protocols for using PPE (Personal Protective Equipment) to avoid accidental exposures.
Cruises Got You Cruising to the Bathroom?
Commonly associated with cruise ships, Norovirus, also known as Norwalk or Norwalk-like virus, is a major cause of diarrheal disease, commonly referred to as the stomach flu. Find out more about the symptoms, treatment, and prevention of norovirus.
How do you treat TB?
Tuberculosis is a disease we know how to treat and cure. There are medications - Isoniazid, Rifampin, Pyrazinamide, Ethambutol - used in combination to treat it.
Getting Rid of Superbugs
The emergence of superbugs is a huge public health issue, but can potentially be solved with proper use of antibiotics. Find out how we can help fix the super bug problem
Definition of Congenital Defect
Glossary definition of Congenital Defect
How Infectious Diseases Cause Cancer
Infectious diseases are responsible for up to 30% of all cancers worldwide. Find out how microbes cause cancer.
What infections can you catch from a blood...
Blood Transfusions can be scary. Find out more about the infections we prevent in blood transfusions.
Wait, the Plague is back, really?
The news says: Plague in Colorado. The plague actually never went away. It still infects rodents. We've tamed the bacteria - through pest control and antibiotics, but cases crop up whether in Africa or the US.
What You Need to Know About Botulism
Botulism, caused by ingestion of Clostridium botulinum or its toxin, can be deadly for its victims. Find out more about symptoms, treatment, and prevention of this disease.
Swine Flu FAQs
FAQs about swine flu from Harvard Medical School
The Malaria of Massachusetts
Babesia is a disease spread by the same tick as Lyme Disease - and may become just as common. For most it's a mild disease, for some it's much more serious.
Drug Resistance spreads, now in Shigella
Shigella joins the growing list of infections we can longer treat with our standard antibiotics as drug resistance quickly spread from abroad to high risk populations in the US.
What is Zika?
Zika virus is the new kid on the block in much of the world. It's joining Dengue and Chikungunya, spreading rapidly, apparently reaching Brazil, after causing aches and pains in Africa and the Pacific.
Infections don't have to spread. We can stop...
Infectious Diseases took their toll in 2014. Here's to a New Year with fewer Infections. There are many we can work to eradicate forever.
Disease-Free Daycares
Daycare centers don't have to be germ centers. Find out why child care centers and preschools are common sources of infectious diseases. Learn some tips for keeping your child's daycare center free of nasty germs and infections
So you ate something you shouldn't have. What...
You nibbled on the leftovers left on the counter and now you're feeling sick. What to know about foodborne infections and how to prevent getting sick.
What is a PPD TB test?
There's a test for latent Tuberculosis (TB). It's called a PPD or TST test. Each year thousands of school kids are tested. Find out what it means.
What is the story behind Anthrax?
Anthrax has made it back in the news again. It's a disease that's found naturally but the worry remains that one day it will be used as a weapon.
What is Ross River Fever?
Ross Virus has been increasing in Australia. Joint pain, muscle aches, and fatigue lasting sometimes a year or more are hallmarks of the infection.
Shigella and Shigellosis Foodborne Disease
Shigella is an infectious food-borne bacteria that can cause severe diarrhea, known as dysentery or Shigellosis. Find out symptoms of Shigella infections and how to treat and prevent disease.
What is Osteomyelitis?
Osteomyelitis is an infection of the bone. It can come on slowly or without warning. Learn more about what causes it and how to treat it.
The 5 Biggest Myths About Antibiotics
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Some diseases spread, some don't. How to know...
Some diseases spread like wildfire; some don't. Find out how epidemiologists know one from the other.
How to Recover from Diarrhoea with 3 Simple...
Dehydration is a main cause of concern when it comes to diarrheal disease in small children. Here's a easy and cheap recipe for oral rehydration therapy.
What is a Z pak?
Z-Pac is a commonly prescribed drug - too commonly, in fact. It is often overprescribed for infections not caused by bacteria that it treats.
Viral Hemorrhagic Fevers, More than just Ebola
Crimean-Congo Hemorrhagic Fever (CCHF) is another cause of hemorrhagic viral fevers seen in small outbreaks around the world. It's not just Ebola.
Seasonality of Winter Viruses
If seasonal illnesses are caused by viruses and other microbes, how does one explain the phenomena of the cold being associated with getting sick more frequently? It turns out there may be some truth to this old wives' tale after all.
What You Should Know About Ebola
Ebola is a viral hemorrhagic fever, currently spreading in West Africa. It is spread through direct contact with a person (or their body fluids) who is ill with Ebola. Before a patient has symptoms from Ebola, they cannot transmit the infection.
What infections can be seen with heroin?
Heroin rates have risen in the US. There are a number of infections from Hepatitis to tetanus and anthrax which occur after injection drug use.
Definition of Virulence
Glossary definition of virulence
Athlete's Foot
Athlete's foot, also known as ringworm of the foot, is a fungal infection that causes itchy, scaly skin between the toes. Learn about its symptoms, treatment, diagnosis, and tips for preventing athlete's foot.
Campylobacter and Campylobacteriosis Foodborne...
Campylobacter jejuni causes a food-borne diarrheal disease after eating contaminated milk or poultry. Find out symptoms of Campylobacter infections and how to limit the risk for disease.
What is Typhus
Typhus is a disease that is called Typhoid-like, but it's nothing of the sort. It used to cause havoc whenever there was already havoc.
Why not all Hepatitis C is the same
There isn't just one type of Hepatitis C. There are many. Which type causes the infection can determine how successful treatment will be.
What is Salmonellosis?
Salmonella is a major cause of food-borne outbreaks in the United States. Find out what it is, how it causes disease and how to prevent and treat it.
The Truth About Daycares
Find out the truth about daycare-associated infections and what causes them. Did you know there are even some health-related benefits for children who attend daycare centers and preschools? Keep reading to find out more!
Can mold make me sick?
What can mold do? Most mold causes no problems, but sometimes Aspergillus does
Rotavirus Vaccine Radar
The Rotateq vaccine is a promising new vaccine for rotavirus infection that leads to severe diarrhea in small children. Find out how well it works and how safe it is.
Definition of Pandemic
Glossary definition of pandemic. Infectious Diseases.
Is Ebola Mutating?
Ebola is mutating. The question is, does it matter?
Are any other viruses like Ebola out there?
Ebola has grabbed the headlines. There are actually other Viral Hemorrhagic Fevers. They just happen to be rare - Lassa, Marburg, Yellow Fever, Hantavirus, even Dengue.
Definition of Zoonotic Disease
Glossary Definition of zoonotic disease
Can a good night of sleep keep a cold away?
A good night's rest sounds like a good idea. Your immune system may thank you. It may make vaccines work better and keep colds at bay.

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