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Singapore reports rise in influenza cases; CDA urges vaccination for high-risk groups

Singapore's Communicable Diseases Agency (CDA) reported an increase in influenza cases, with the positivity rate rising to 36.6% in late August. The agency said there is no indication that infections are more severe than usual, recommended annual vaccinations for high-risk groups, and advised symptomatic individuals to stay home.

By Tertius News AI Desk 2 distinct · 2 mastheads · 2 articles Version 1 Coverage Sep 1, 2026 Published 1h ago

Singapore has seen an uptick in influenza cases, with the positivity rate among influenza-like illness samples in the community reaching 36.6 per cent in the week of Aug 16 to 22, according to the Communicable Diseases Agency (CDA). This is up from 24 per cent the previous week. The current rate remains below the 2025 peak of 43.9 per cent recorded in January, CDA noted in a media statement on Sept 1.

CDA says situation not more severe than usual

Despite the rise, the CDA said there is no indication that infections are more severe than usual, and it is monitoring the situation. Seasonal influenza viruses circulate in Singapore year-round, with higher activity typically seen between May and August, and again between December and March. The CDA attributed these patterns to the winter seasons in the Northern and Southern Hemispheres, though the timing can vary due to factors like international travel.

Influenza, which spreads mainly through respiratory droplets or tiny particles from coughing, sneezing, talking, or singing, causes symptoms such as fever, headaches, coughs, sore throats, chills, and general fatigue, the agency explained.

Vaccination advice and availability

The CDA recommends that people at higher risk of severe influenza receive a flu vaccination at least once a year. This group includes seniors aged 65 and above, children aged six months to five years, and individuals with underlying medical conditions.

Vaccinations are available at participating Community Health Assist Scheme (CHAS) general practitioner clinics and polyclinics. Adults aged 18 and above can also receive flu jabs at participating retail pharmacies under the Ministry of Health's Community Pharmacist Influenza Vaccination Sandbox. Those enrolled in Healthier SG are encouraged to book vaccinations at their enrolled clinics.

Public health advisory

The CDA urged people with mild respiratory symptoms to stay home until symptoms resolve. If they must go out while symptomatic, they should minimise social interactions, wear a mask, and avoid crowded places or meeting medically vulnerable individuals, the agency said.

How each outlet told it

A framing line is our reading of that outlet's own text — an interpretation, not a quotation and not a fact we assert. Check it against what the outlet published.

CNA

Framing: Rise in influenza cases is paired with official assurance that infections are not more severe than usual — Neutral and factual

as of Sep 1, 2026, 8:15 AM UTC

Facts Included:

Influenza cases in Singapore have increased
Positivity rate among influenza-like illness samples rose to 6 per cent in the week of Aug 16 to 22
CDA made the announcement on Tuesday (Sep 1)
Rate was up from 24 per cent the previous week
No indication that infections are more severe than usual, CDA said
CDA is monitoring the situation
Seasonal influenza circulates throughout the year, with higher activity typically between May and August and December to March
These periods coincide with winter in Northern and Southern Hemispheres, with timing varying due to factors such as international travel
CDA recommends flu vaccination at least once a year for people at higher risk
Higher risk groups include seniors aged 65 and above, children aged six months to five years, and people with underlying medical conditions
Vaccinations are available at CHAS GP clinics and polyclinics
Eligible adults aged 18 and above can receive flu vaccinations at participating retail pharmacies under the Community Pharmacist Influenza Vaccination Sandbox
Healthier SG enrollees are encouraged to book vaccinations at their enrolled clinics
CDA urged people with mild respiratory symptoms to stay home until symptoms resolve
Those who need to go out while symptomatic should minimise social interactions, wear a mask, and avoid crowded places or medically vulnerable people

Read the source article →

The Star as of Sep 1, 2026, 10:47 AM UTC

Facts Included:

CDA reported an increase in influenza cases in Singapore on Sept 1
CDA said seasonal influenza viruses circulate through the year, with peak periods typically in May to August and December to March
Common symptoms include fever, headaches, coughs, sore throats, chills, and general fatigue
CDA said influenza spreads mainly through respiratory droplets or tiny particles from coughs, sneezes, talks, or sings
CDA advised higher-risk groups to get vaccine jabs at least once a year
Higher-risk groups include people aged 65 and above, children aged six months to five years, and those with underlying medical conditions
People with mild acute respiratory infection symptoms should stay home until symptoms subside
If going out, they should minimise social interactions, wear a mask, avoid crowded places, or avoid meeting medically vulnerable persons

Read the source article →

What was claimed, and who backed it

AI-extracted; can misattribute a claim — see Methodology.

Each row is one claim, attributed to the outlet whose wording states it most clearly. Confidence rates how directly the source text states the claim — explicit and unhedged rates high; hedged, pieced-together, or internally inconsistent statements rate lower. It does not measure whether the claim is true. Status is Contested when two claims on this page negate each other; otherwise it counts the distinct outlets we found asserting that specific claim — so a single-source claim can still show high confidence, and a multi-source claim can show medium. Every one of those outlets is named beside the status, so you can check the count against the list. For claims extracted before we began storing that list, the row says so: it names the outlet the claim is quoted from and states that we have not recorded which outlets backed it. Outlets wrote at different times, so a figure that evolves — a casualty count, for example — can legitimately differ between rows; check the "as of" time next to each claim's source.

Claim	Confidence	Status
ClaimThe Communicable Diseases Agency (CDA) said on Sept 1 there has been an increase in the number of influenza cases observed in Singapore.	ConfidenceHigh	StatusSingle-source via The Star as of Sep 1, 2026, 10:47 AM UTC
ClaimThe positivity rate among influenza-like samples in the community increased to 36.6 per cent in the week of Aug 16 to 22, up from 24 per cent the previous week, said the CDA.	ConfidenceHigh	StatusMulti-source (2 outlets · 2 distinct) via CNA as of Sep 1, 2026, 8:15 AM UTC, The Star as of Sep 1, 2026, 10:47 AM UTC
ClaimInfluenza positivity levels represent the percentage of community swab samples that test positive for the influenza virus.	ConfidenceHigh	StatusSingle-source via The Star as of Sep 1, 2026, 10:47 AM UTC
ClaimSeasonal influenza viruses circulate through the year, with peak periods typically observed in May to August and December and March, the CDA said.	ConfidenceHigh	StatusMulti-source (2 outlets · 2 distinct) via The Star as of Sep 1, 2026, 10:47 AM UTC, CNA as of Sep 1, 2026, 8:15 AM UTC
ClaimCommon symptoms of influenza include fever, headaches, coughs, sore throats and the chills or general fatigue.	ConfidenceHigh	StatusSingle-source via The Star as of Sep 1, 2026, 10:47 AM UTC
ClaimInfluenza spreads mainly through respiratory droplets or tiny particles released when an infected person coughs, sneezes, talks or sings, according to the CDA.	ConfidenceHigh	StatusSingle-source via The Star as of Sep 1, 2026, 10:47 AM UTC
ClaimThose at a higher risk of developing severe influenza infections should get their vaccine jabs at least once a year, the agency said.	ConfidenceHigh	StatusMulti-source (2 outlets · 2 distinct) via The Star as of Sep 1, 2026, 10:47 AM UTC, CNA as of Sep 1, 2026, 8:15 AM UTC
ClaimPeople with mild symptoms of acute respiratory infections should stay at home until they no longer show those symptoms.	ConfidenceHigh	StatusMulti-source (2 outlets · 2 distinct) via The Star as of Sep 1, 2026, 10:47 AM UTC, CNA as of Sep 1, 2026, 8:15 AM UTC
ClaimIf they need to go out while symptomatic, they should minimise social interactions, wear a mask, avoid crowded places or meeting medically vulnerable persons.	ConfidenceHigh	StatusSingle-source via The Star as of Sep 1, 2026, 10:47 AM UTC

Transparency & Audit Trail

2 distinct · 2 mastheads · 2 articles consulted: CNA, The Star 9 claims extracted Version 1 Written 2026-09-01