
Diphtheria, tetanus, and pertussis are prevented by a childhood vaccine called DTaP, and a vaccine for adolescents and adults called Tdap. The DTaP vaccine is given to infants and young children in a series of shots, while the Tdap vaccine is administered to older children and adults. Both vaccines are combination vaccines that protect against diphtheria, tetanus, and pertussis, with the lowercase d and p in Tdap indicating lower concentrations of diphtheria and pertussis antigens. The Td vaccine, on the other hand, protects against only diphtheria and tetanus and is also given as a booster dose every 10 years.
| Characteristics | Values |
|---|---|
| What does DTaP stand for? | Diphtheria, Tetanus, and Pertussis |
| What does Tdap stand for? | Tetanus, Diphtheria, Acellular Pertussis |
| What does Td stand for? | Tetanus and Diphtheria |
| What are the common side effects of the DTaP vaccine? | Fever, crankiness, tiredness, loss of appetite, vomiting, pain, redness, or swelling in the area where the shot was given |
| What are the rare side effects of the DTaP vaccine? | Seizure, very high fever, uncontrollable crying, swelling of the whole arm or leg where the shot was given |
| What are the common side effects of the Tdap vaccine? | Pain, redness, or swelling at the injection site, nausea, vomiting, stomachache |
| What are the rare side effects of the Tdap vaccine? | Hives, swelling of the face and throat, difficulty breathing, rapid heartbeat |
| Who should get the DTaP vaccine? | Children younger than 7 years old |
| Who should get the Tdap vaccine? | Older children, adolescents, adults, pregnant women |
| How often should the Tdap vaccine be taken? | Every 10 years |
| How many vaccines are available in the US to protect against diphtheria and tetanus? | 11 |
| How many of these vaccines also help protect against pertussis? | 9 |
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What You'll Learn

DTaP and Tdap are combination vaccines
DTaP contains full-strength doses of all three vaccines, while Tdap contains a full-strength dose of the tetanus vaccine and lower doses of the diphtheria and pertussis vaccines. This is because Tdap is used as a booster shot to maintain immunity, rather than build it up from scratch. The booster shot is recommended every 10 years for both children and adults to boost immunity against these infections.
DTaP and Tdap are inactivated vaccines, meaning that the toxins produced by the bacteria that cause these diseases are inactivated and will not cause the disease. However, they do trigger the body to produce antibodies that give it immunity against the toxins. The vaccines have been extremely effective in preventing these diseases, with diphtheria and tetanus virtually ending in childhood and the number of pertussis cases greatly reduced.
There are currently seven DTaP vaccines licensed for use in the United States: Daptacel®, Infanrix®, Kinrix®, Pediarix®, Pentacel®, Quadracel®, and Vaxelis™. Tdap is sold under the brand names Adacel® and Boostrix®.
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DTaP is for children, Tdap for adolescents and adults
The DTaP and Tdap vaccines are inactivated vaccines that protect against diphtheria, tetanus, and pertussis (whooping cough). The DTaP vaccine is for children under seven years old, while the Tdap vaccine is for older children, adolescents, and adults.
DTaP is a vaccine that helps children develop immunity to diphtheria, tetanus, and whooping cough. Children under seven years old receive the DTaP vaccine as a series of five shots. The DTaP vaccine contains diphtheria and tetanus toxoids and pertussis antigens. Toxoid vaccines use toxins created by disease-causing germs to create immunity or protection from the parts of the germ that cause the disease. They target the harmful activity of a germ, instead of the germ itself.
Tdap is the vaccine for older children, adolescents, and adults. Adolescents aged 11 to 12 receive the Tdap vaccine, also called the adolescent booster dose. Older teens and adults who haven't received a booster with pertussis coverage should also get the Tdap vaccine. This is especially important for adults who will be around newborn babies, such as grandparents or other caregivers. Tdap boosters are recommended every 10 years to maintain immunity. Pregnant women should also receive the Tdap vaccine in the second half of each pregnancy to help protect their infants from whooping cough.
Both vaccines are generally safe and effective, with only mild side effects such as pain, redness, and swelling at the injection site. Serious reactions are rare. However, some children may have a bad reaction to the pertussis vaccine in DTaP and should not take another dose. In such cases, a vaccine called DT or Td, which protects against diphtheria and tetanus, can be given instead.
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Tdap side effects are mild and rare
The Tdap vaccine is a combination immunizing agent used to protect against infections caused by diphtheria, tetanus (lockjaw), and pertussis (whooping cough). It is given to children aged 11 to 12 and older, as well as to women in their third trimester of pregnancy to prevent pertussis in babies younger than two months old. The vaccine boosts the protection that the patient had from an earlier dose.
While the Tdap vaccine is generally safe, it can cause some mild side effects. These side effects are usually mild to moderate and typically last from one to three days. They include pain, redness, or swelling where the shot was given, mild fever, tiredness, nausea, vomiting, diarrhoea, and stomach ache. In some cases, more intense side effects may temporarily interfere with daily activities. For example, severe swelling of the arm has been reported in 3 out of 100 people receiving the Tdap vaccine, and about 1 in 250 adults who receive the vaccine develop a fever of 102°F or higher.
Although rare, there is a small risk of an allergic reaction to the Tdap vaccine, which can be life-threatening. Signs of an allergic reaction include hives, swelling of the face and throat, difficulty breathing, a fast heartbeat, dizziness, and weakness. If you experience any of these symptoms after receiving the Tdap vaccine, seek immediate medical attention.
It is important to note that the risks associated with the diseases that the Tdap vaccine protects against are much greater than the chances of experiencing serious side effects from the vaccine. Diphtheria, tetanus, and pertussis are serious diseases that can cause life-threatening illnesses. Therefore, the benefits of the Tdap vaccine in preventing these diseases outweigh the potential risks of mild and rare side effects.
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Tdap is safe during pregnancy
The Tdap vaccine is generally considered safe during pregnancy. It is recommended that pregnant women get the Tdap vaccine in the second half of each pregnancy, preferably during the 27th to 36th week. This helps protect both the mother and the baby from whooping cough (pertussis).
Whooping cough is a serious disease that can be deadly, especially for young babies. Babies do not start building their own protection against whooping cough until they get vaccinated at two months old, leaving them vulnerable in the first months of their lives. By getting the Tdap vaccine during pregnancy, mothers can pass on protective antibodies to their babies before birth, providing them with some short-term protection against whooping cough.
While the Tdap vaccine is considered safe, there have been reports of an increased risk of chorioamnionitis in pregnant people who receive the vaccine. However, additional studies have not confirmed this association, and a large cohort study found no association between the Tdap vaccine during pregnancy and chorioamnionitis, preterm birth, or adverse infant outcomes. The CDC and other medical associations dedicated to the health of pregnant women and children support the recommendation of Tdap vaccination during pregnancy.
The Tdap vaccine is an inactivated vaccine that helps protect against three potentially severe bacterial infections: tetanus, diphtheria, and pertussis. Tetanus, also known as lockjaw, is an infection that affects nerves and causes severe muscle spasms. It can enter the body through cuts or wounds. Diphtheria is a serious throat infection that can block the airway and cause severe breathing problems. Pertussis, or whooping cough, is a respiratory infection that causes cold-like symptoms and severe coughing fits.
The Tdap vaccine is safe and effective, with mild side effects such as pain, redness, and swelling at the injection site. Serious reactions are rare, and the benefits of vaccination typically outweigh the potential risks. It is important to stay up to date with Tdap boosters every 10 years to maintain immunity against these infections.
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Tdap boosters are recommended every 10 years
The Tdap vaccine is a combination vaccine that protects against three severe bacterial infections: tetanus, diphtheria, and pertussis (whooping cough). Tetanus, also known as lockjaw, causes painful muscle stiffening, especially in the neck and jaw. It enters the body through cuts or wounds. Diphtheria is a serious infection of the throat that can block the airway and cause severe breathing problems. It is spread from person to person. Pertussis, or whooping cough, is a respiratory infection that causes cold-like symptoms, leading to severe coughing and trouble breathing. It is also spread from person to person.
The Tdap vaccine is recommended for older children and adults, while younger children typically receive the DTaP vaccine, which is similar but does not include protection against tetanus. Tdap boosters are recommended every 10 years for individuals aged 7 and older to maintain immunity against these infections. This is because the protection provided by the vaccine decreases over time. Getting a booster shot every 10 years helps to strengthen the immune system's response to these diseases and reduce the risk of infection.
Pregnant women should also receive the Tdap vaccine during the second half of their pregnancy, even if they have been vaccinated before. This helps protect the baby from pertussis, which can be life-threatening for infants, until they are old enough to receive their own vaccine. Additionally, adults who will be around newborn babies, such as grandparents or other caregivers, should ensure they are up to date with their Tdap boosters.
Side effects of the Tdap vaccine are typically mild and may include pain, redness, and swelling at the injection site. Serious reactions are rare. However, individuals who have had severe allergic reactions or severe pain or swelling after a previous Tdap vaccine should consult their healthcare provider before receiving another dose.
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