Whooping Cough (Pertussis) in the Philippines 2026: Symptoms, Treatment & Free Vaccine

Quick Answer: Pertussis (whooping cough, "ubong dalahit") is a bacterial cough illness that is most dangerous for babies under 6 months. In the Philippines' last major documented surge (2024), the DOH recorded thousands of cases nationwide, and 79% of cases were in children under 5. There is no known nationwide outbreak declared as of July 2026 — check current DOH advisories or your city/municipal health office for local status. Treatment is antibiotics (azithromycin is standard). Prevention is the free Pentavalent (DTP-containing) vaccine given at 6, 10, and 14 weeks at any Rural Health Unit or Barangay Health Station — no PhilHealth needed.

Table of Contents

• What Is Pertussis (Whooping Cough)?
• How Common Is It in the Philippines?
• What Are the Symptoms, Stage by Stage?
• When Is Whooping Cough an Emergency for a Baby?
• How Is Pertussis Diagnosed and Treated?
• Do Household Members Need Antibiotics Too?
• How Do You Prevent It? The Free DTP Vaccine
• Who Is Most at Risk?
• Frequently Asked Questions

What Is Pertussis (Whooping Cough)?

Pertussis is a highly contagious bacterial infection of the airways caused by Bordetella pertussis. It spreads through coughing and sneezing droplets, and an infected person can pass it on for weeks if untreated. Filipino parents may hear it called "ubong dalahit," "tuspirina," or simply described as "ubo na parang naiipit ang hininga" (a cough where the child seems to struggle for breath).

The disease gets its common name from the high-pitched "whoop" sound some patients — usually older children and adults — make when gasping for air after a coughing fit. Babies often don't make this sound at all. This is informational content, not a substitute for medical evaluation. See a doctor if your child has a persistent or worsening cough, especially if they are under 1 year old.

How Common Is It in the Philippines?

The Department of Health's last major documented pertussis surge was in 2024. According to DOH figures reported by Philippine News Agency and cited in a February 2025 public-health review, the outbreak progressed like this:

Of the total cases logged as of March 23, 2024, 79% were children under 5 years old, and 62.7% were infants younger than 6 months — the age group at highest risk of severe disease. Among those infant cases, roughly three-quarters were unvaccinated or had unknown vaccination status. The hardest-hit regions were MIMAROPA, NCR, Central Luzon, Central Visayas, and Western Visayas, and Quezon City, Pasig City, and Iloilo City each declared local outbreaks. DOH leadership described the outbreak as "under control" by early April 2024, though monitoring and catch-up vaccination continued afterward.

As of July 2026, we found no new nationwide pertussis outbreak declaration in DOH or major news coverage. Pertussis remains present at low levels between outbreaks (it is naturally cyclical), so treat this as background context, not a live case count. For the current local situation, check your city or provincial health office, or the DOH Epidemiology Bureau bulletins directly.

What Are the Symptoms, Stage by Stage?

Pertussis typically runs through three stages over 6–10 weeks. Recognizing the stage matters because antibiotics work best in the first stage, before the cough becomes severe.

Infants under 6 months often don't fit this pattern. Instead of the classic whoop, a young baby may show pauses in breathing (apnea), gagging, gasping, choking spells, or a bluish tinge to the lips or face — sometimes with little or no visible coughing at all. This is exactly why it's easy to miss in newborns and why it is more dangerous for them.

When Is Whooping Cough an Emergency for a Baby?

Go to the emergency room immediately if your baby has any of these signs:

• Pauses in breathing (apnea), even brief ones
• Lips, tongue, or face turning blue or pale (cyanosis)
• Gasping, choking, or struggling to breathe between coughing fits
• Coughing so hard they vomit repeatedly or can't keep feeds down
• Unusual limpness, extreme sleepiness, or difficulty waking
• Signs of dehydration (fewer wet diapers, sunken soft spot, dry lips)
• Any seizure activity

Infants under 6 months are at the highest risk for hospitalization, pneumonia, and — in the most severe untreated cases — death. A published Filipino case series cited in the same 2025 public-health review reported a case fatality rate of roughly 46% among hospitalized infants, most of whom were unvaccinated — a stark illustration of why early recognition and prompt care matter. Do not wait it out at home if a young infant shows any of the signs above. Use ClinicFinderPH's search or find a nearby hospital with a pediatric ER if you need to locate emergency care quickly.

How Is Pertussis Diagnosed and Treated?

Doctors diagnose pertussis from the pattern of symptoms plus a nasal or throat swab (PCR or culture) to confirm Bordetella pertussis. Blood tests may show a very high white blood cell count in young infants, which can be a clue even before lab confirmation.

Treatment is antibiotics — specifically macrolides. Per CDC clinical guidance, azithromycin, clarithromycin, and erythromycin are all effective, with azithromycin generally preferred, especially in infants under 1 month (erythromycin and clarithromycin are avoided in newborns due to a rare association with infantile pyloric stenosis). If a macrolide can't be used, trimethoprim-sulfamethoxazole (co-trimoxazole) is the alternative for children over 2 months.

Antibiotics work best when started during the catarrhal stage or within about 3 weeks of cough onset — they shorten how long the person is contagious, though once the paroxysmal stage is underway, they may not dramatically shorten the cough itself, which can linger for weeks regardless. Supportive care (small frequent feeds, rest, avoiding cough triggers like smoke) matters throughout. This article is informational only — a doctor needs to confirm diagnosis and prescribe the correct antibiotic and dose for your child's age and weight.

Do Household Members Need Antibiotics Too?

Often, yes. The CDC recommends post-exposure antibiotic prophylaxis for all household and other close contacts of a confirmed pertussis case, ideally started within 21 days of the index patient's cough onset — the same macrolide antibiotics used for treatment, at prophylactic doses. This matters most when the household includes:

• Infants under 12 months, especially under 6 months
• Anyone in the third trimester of pregnancy
• People who are immunocompromised
• Anyone with a chronic lung or heart condition

The goal isn't just to protect the individual contact — it's to break the chain of transmission before a vulnerable household member gets exposed further. If someone in your home is diagnosed with pertussis, ask the treating doctor whether other family members (particularly a young sibling or grandparent) should also start preventive antibiotics, and keep the sick person's cough covered and hands washed in the meantime.

How Do You Prevent It? The Free DTP Vaccine

The most effective prevention is vaccination, and in the Philippines the core pertussis-containing vaccine is free. Under the DOH's Expanded Program on Immunization (EPI), mandated by RA 10152, the Pentavalent vaccine (DTwP-HepB-Hib) — which includes the pertussis component along with diphtheria, tetanus, hepatitis B, and Hib — is given free at any Rural Health Unit (RHU), Barangay Health Station (BHS), or city/municipal health center:

1. Bring your child's Mother and Child Book or barangay immunization card.
2. Get 3 primary doses at 6, 10, and 14 weeks of age.
3. No PhilHealth enrollment is required — EPI vaccines are free regardless of PhilHealth status.
4. If your child missed a dose, RHUs generally allow catch-up dosing — ask staff about the "no missed opportunity" policy rather than restarting the series from scratch.

For the full free-and-private vaccination timeline — including what happens after the primary infant series — see our Pediatric Vaccination Schedule Philippines 2026 guide. One nuance worth knowing: the free school-based booster in Grade 1 and Grade 7 under EPI is Td (tetanus-diphtheria), which does not contain a pertussis component — a private Tdap booster is the option if you want continued pertussis protection into the school-age years, and this is a routine question to raise with your pediatrician rather than something to self-diagnose a need for.

Who Is Most at Risk?

Pertussis can infect anyone, but severity varies sharply by age and vaccination history:

• Unvaccinated or partially vaccinated infants under 6 months — highest risk of hospitalization, complications, and death, since they haven't completed the primary Pentavalent series yet.
• Older siblings and adults in the household — pertussis immunity from childhood vaccination fades over time, so adults can carry a milder, cold-like case and unknowingly infect an infant. This is a major reason infants get infected before they're even old enough to be fully vaccinated.
• Pregnant women — vaccination during pregnancy (where available) can pass some protective antibodies to the newborn before their own vaccines start.
• Anyone with chronic respiratory conditions, who may have a more severe or prolonged course.

Frequently Asked Questions

Is whooping cough the same as tigdas (measles)?

No. They're different diseases with different causes — pertussis is bacterial, measles is viral — but both cause outbreaks in under-vaccinated communities and both have free DOH vaccines. See our free measles vaccine guide if you're checking on measles specifically.

Can adults get whooping cough?

Yes. Adult cases are usually milder and easily mistaken for a lingering cold or bronchitis, which is exactly why it spreads to infants in the household before anyone realizes what it is.

How long is someone with pertussis contagious?

Roughly from the start of symptoms through about 2 weeks into the coughing fits if untreated, or until about 5 days after starting appropriate antibiotics. A doctor confirming diagnosis and treatment timeline is the reliable way to know when it's safe to be around others again.

Does PhilHealth cover pertussis treatment?

Confirm current inpatient case rates directly with PhilHealth or the admitting hospital — PhilHealth's standard case-rate system covers many inpatient pediatric pneumonia and respiratory-illness admissions, but the specific rate depends on the diagnosis and severity coded by the hospital. The vaccine itself doesn't need PhilHealth since EPI vaccines are already free.

My baby hasn't finished all 3 Pentavalent doses yet — are they protected at all?

Partial protection builds with each dose, but full protection from the primary series requires completing all 3 doses. Until then, limiting an unvaccinated infant's exposure to anyone with a cough — especially older relatives — is a reasonable precaution.

Is there a whooping cough vaccine for adults in the Philippines?

Private Tdap (tetanus-diphtheria-acellular pertussis) is available at private clinics and hospitals for adolescents and adults, though it is not part of the free EPI program for adults. Ask your clinic about current availability and pricing.

Conclusion

Pertussis is preventable, treatable, and — for infants especially — genuinely dangerous if missed. The single highest-leverage action is completing the free Pentavalent series at 6, 10, and 14 weeks at your nearest RHU or BHS. If a baby in your household develops a severe cough, breathing pauses, or a bluish tint to the face, treat it as an emergency and seek care immediately rather than waiting it out.

Related reading: Pediatric Vaccination Schedule Philippines 2026, Free Measles Vaccine Philippines, HFMD Philippines: A Parent's Guide, Vaccine Cost in the Philippines. Need to find care fast? Use ClinicFinderPH search or browse hospitals near you.