Health Pulse / California

California Health Pulse

Public health surveillance data. Not medical advice.

Current Trends

COVID-19

Growing

Rt (effective reproduction): 1.1094

Week of 2026-08-25

Wastewater Viral Activity

Influenza A virus

High

79 monitoring sites, week of 2026-08-22

RSV

Moderate

79 monitoring sites, week of 2026-08-22

SARS-CoV-2

Very High

79 monitoring sites, week of 2026-08-22

Highest activity level observed among this state's wastewater monitoring sites. Wastewater signals often precede clinical reporting.

Notifiable Disease Reports

Disease	Latest Week	Count	52-Week Max
Campylobacteriosis	MMWR 33/2026	107	399
Cryptosporidiosis	MMWR 33/2026	35	62
Giardiasis	MMWR 33/2026	22	77
Legionellosis	MMWR 32/2026	2	46
Malaria	MMWR 33/2026	2	7
Mpox	MMWR 31/2026	1	33
Mumps	MMWR 19/2026	1	4
Pertussis	MMWR 33/2026	8	68
Salmonellosis (excluding Salmonella Typhi infection and Salmonella Paratyphi infection)	MMWR 33/2026	48	201
Shigellosis	MMWR 33/2026	17	118
Tuberculosis	MMWR 33/2026	2	85

Weekly provisional counts reported to CDC NNDSS by state health departments. Each disease shows its own most recently reported week — some lag behind others. Provisional and subject to revision.

Health Profile

Long-term community health indicators (not current surveillance) — 2023 estimates.

Coronary Heart Disease

5.46%

Current Asthma

10.1%

Current Smoking

12.68%

Depression

22.95%

Diabetes

10.47%

Frequent Mental Distress

18.45%

High Blood Pressure

29.14%

No Health Insurance

11.21%

Obesity

30.25%

Physical Inactivity

24.45%

Source: CDC PLACES, state-level average of local estimates.

Source: Centers for Disease Control and Prevention. Trend estimates and wastewater viral activity levels, not diagnoses or case counts. Public health surveillance data — not medical advice.