The common cold is one of the most frequent respiratory infections, and it can spread surprisingly easily from one person to another. If someone in your home, workplace, classroom, or social group develops a cold, you may wonder how you caught it—even when you never directly touched the sick person.
The answer is that cold viruses can spread through respiratory droplets, close contact, contaminated surfaces, and shared objects. More than 200 respiratory viruses can cause cold symptoms, with rhinoviruses being the most common cause.
Here are 7 common ways you can catch a cold from someone else and practical steps that may help reduce your risk.
What Causes the Common Cold?
The common cold is a viral infection of the upper respiratory tract. Rhinoviruses are the most frequent cause, although several other respiratory viruses can produce cold symptoms.
Typical symptoms include:
- Runny or stuffy nose
- Sneezing
- Sore throat
- Cough
- Headache
- Mild body aches
- Low-grade fever in some people
Cold symptoms commonly begin 1 to 3 days after exposure to a cold virus.
7 Ways You Can Catch the Common Cold
1. Breathing in Respiratory Droplets
One of the most familiar ways respiratory viruses spread is through droplets released when an infected person coughs, sneezes, or talks.
If you're nearby, these droplets can reach your eyes, nose, or mouth—or you may breathe in infectious respiratory particles. This is one reason being close to someone who is sick can increase your risk.
Example: Someone sneezes beside you on a bus or in a classroom, releasing respiratory droplets into the surrounding area.
How to reduce the risk
Try to give someone with respiratory symptoms more space and avoid prolonged close contact when possible.
2. Touching Contaminated Surfaces
Cold viruses can also reach objects and surfaces through respiratory secretions. If you touch a contaminated object and then touch your eyes, nose, or mouth, the virus may enter your body.
Frequently touched objects can include:
- Door handles
- Light switches
- Phones
- Keyboards
- Tables
- Remote controls
- Toys
The CDC recommends cleaning frequently touched surfaces and practicing good hand hygiene to reduce respiratory-virus transmission.
3. Shaking Hands or Other Close Contact
Direct physical contact can provide another route for transmission. A person with a cold may have virus-containing respiratory secretions on their hands after coughing, sneezing, or blowing their nose.
If you shake hands and subsequently touch your eyes, nose, or mouth, you may transfer the virus to your face.
Simple habit: Wash your hands after contact with someone who is sick, particularly before eating or touching your face.
4. Sharing Personal Items
Sharing everyday objects can make it easier for respiratory viruses to move between people.
Potentially shared items include:
- Drinking glasses
- Cups and utensils
- Towels
- Toys
- Phones
- Other frequently handled objects
Mayo Clinic notes that cold viruses can spread through shared objects contaminated with the virus.
A better approach
When someone has a cold, avoid sharing drinking utensils and personal items whenever practical. Wash reusable items regularly.
5. Spending Time in Crowded Indoor Places
Crowded environments can increase exposure because you're around more people and often physically closer to them.
Examples include:
- Classrooms
- Public transportation
- Offices
- Elevators
- Waiting rooms
- Busy shops
- Social gatherings
The closer you are to someone carrying a respiratory virus, the greater the potential exposure. Physical distancing can provide an additional layer of protection.
This doesn't mean you need to avoid people completely. Rather, good ventilation, sensible distancing, and hand hygiene can help lower your exposure.
6. Touching Your Face After Contact With Germs
Here's a common chain of transmission:
Sick person → contaminated hand or surface → your hand → eyes/nose/mouth → infection
You might touch a door handle, phone, desk, or another object without thinking about it. Later, you rub your eyes or touch your nose.
That's why avoiding unnecessary face-touching and washing your hands frequently can be useful habits during periods of respiratory illness.
7. Living With Someone Who Has a Cold
Household members often have many opportunities for close interaction. You may share rooms, bathrooms, furniture, kitchen surfaces, and frequently touched objects.
If one person has a cold, the amount of daily contact can make exposure more likely.
Helpful precautions include:
- Wash hands regularly.
- Avoid sharing cups and utensils.
- Clean frequently touched surfaces.
- Cover coughs and sneezes.
- Improve indoor airflow when practical.
- Avoid unnecessary close contact while someone is actively sick.
These measures can help reduce the chances of respiratory viruses spreading within the household.
How Long After Exposure Do Cold Symptoms Appear?
Cold symptoms often begin about 1 to 3 days after exposure, although timing can vary depending on the virus and individual circumstances.
This can make it difficult to identify exactly where you caught a cold. You may have been exposed at work, school, on public transportation, during a social visit, or at home several days before symptoms appeared.
Can You Spread a Cold Before You Know You're Sick?
Respiratory viruses can sometimes spread before or around the time symptoms become noticeable. Because you may not immediately know that you're infected, everyday prevention habits remain useful.
If you develop respiratory symptoms, staying away from others when possible and taking precautions can help reduce transmission. The CDC recommends staying home and away from others while respiratory-virus symptoms are not improving, followed by additional precautions as you return to normal activities.
How to Prevent the Common Cold From Spreading
There isn't a specific vaccine that prevents the common cold because many different viruses can cause it, and rhinoviruses alone have many different types.
However, you can take practical steps to reduce your risk:
Wash Your Hands
Use soap and water regularly, particularly after coughing, sneezing, blowing your nose, or touching potentially contaminated surfaces. If soap and water aren't available, an alcohol-based hand sanitizer containing at least 60% alcohol is an alternative.
Cover Coughs and Sneezes
Use a tissue or cough and sneeze into your elbow rather than your hands. Dispose of used tissues promptly and wash your hands afterward.
Avoid Touching Your Face
Try not to touch your eyes, nose, and mouth with unwashed hands.
Clean Frequently Touched Surfaces
Regularly clean objects and surfaces that many people handle, particularly when someone in your household is sick.
Avoid Sharing Personal Items
Don't share cups, utensils, towels, or other personal items with someone who has respiratory symptoms.
Improve Indoor Air
Bringing in fresh outdoor air and improving ventilation can be useful measures for reducing respiratory-virus exposure.
Common Cold vs. Flu and COVID-19
A runny nose, cough, sore throat, or fatigue doesn't always mean you have an ordinary cold. Influenza and COVID-19 can cause cold-like symptoms, but they are different infections and may cause more serious illness, particularly in higher-risk people.
If you have symptoms and suspect flu or COVID-19—especially if you're at higher risk for complications—consider appropriate testing and medical advice.
When Should You Seek Medical Care?
Most common colds are mild and resolve without specific treatment. However, seek medical advice if symptoms are unusually severe, don't improve, or become worse.
Seek urgent medical attention for serious symptoms such as difficulty breathing. Cold-like symptoms can sometimes occur with infections that require different treatment or monitoring.
Frequently Asked Questions
Can you catch a cold by touching a door handle?
Yes, potentially. If a contaminated surface has respiratory virus particles on it and you touch the surface and then your eyes, nose, or mouth, transmission can occur.
Can kissing spread a cold?
Close personal contact can provide an opportunity for respiratory viruses to spread, particularly when respiratory secretions are involved.
How does a cold spread in a family?
Frequent close contact, respiratory droplets, contaminated hands, and shared objects can all contribute to transmission within a household.
Does cold weather itself cause a cold?
No. The common cold is caused by viruses, not simply by being exposed to cold temperatures.
How can I stop spreading my cold?
Stay away from others when you're sick, cover coughs and sneezes, wash your hands frequently, clean frequently touched surfaces, and avoid close contact when possible.
Final Thoughts
So, how does the common cold spread? It can move from person to person through respiratory droplets, close contact, contaminated hands and surfaces, shared objects, and everyday interactions in crowded environments.
The good news is that simple habits can make a difference. Wash your hands, cover coughs and sneezes, avoid unnecessary close contact with sick people, clean frequently touched surfaces, and stay home when you're ill.
Understanding how cold viruses spread can help you protect yourself, your family, coworkers, and your community—especially when respiratory illnesses are circulating.
Have you ever caught a cold shortly after someone in your home, workplace, or school became sick? Share your experience in the comments.